As the title mentions, touchscreen response on my A70 seems laggy or jumpy when playing AB.
Basically, when trying to do the fine adjustments to aim, the A70 wants to jump around several pixels worth of movement. (sometimes up to about 1/4 the hight of a bird) On my Nexus 1 and G-tablet I could adjust aim down to pixel sized movements.
It may be due to being close to the screens edge, but I was wondering if anyone else has noticed this. It is not a constant issue, but touchscreen response definitely seems less precise all around when playing the game. Most other apps I use do not need such fine adjustments, so I can not tell if this happens in them as well.
Edit: Downloaded a multitouch tester. (multitouch vis test) This app plots your finger with x,y cords and a visual dot. When moving slowly, both tracking methods made small jerky hops rather than following my finger smoothly. I have never had this happen with any other android device. And yes, I did try the screen calibration in settings several times.
No one else have this problem?
I have this as well... pretty annoying.
Sent from my HTC Legend using XDA App
If this is common, then thats unfortunate. If it is rare then we know that we need to talk to archos support.
Are you in fw 2.0.71 ? I think is firmware related problem. I downgraded to 2.0.54 and have much fewer problems. And a faster a70 (z4root and SetCPU 1000mHz)
Hi there, first Message from me and first Touchscreen device...
i think it is because the wires of the touchscreen are not so close together.
When i look at them, the distance of them seem to compare to the "jumps" you mentioned.
But i have no other device to look at.
Are you using an App Killer before starting Angry Birds? I use the System Monitor to kill all unneeded applications to get at least 90 MB of free RAM before started Angry Birds and it runs very smoothly with excellent response from the touchscreen.
Bye.
CrunchyDoodle said:
Are you using an App Killer before starting Angry Birds? I use the System Monitor to kill all unneeded applications to get at least 90 MB of free RAM before started Angry Birds and it runs very smoothly with excellent response from the touchscreen.
Bye.
Click to expand...
Click to collapse
No, but the multitouch test app is not a RAM heavy app and it also has this problem.
Marine6680 said:
As the title mentions, touchscreen response on my A70 seems laggy or jumpy when playing AB.
Basically, when trying to do the fine adjustments to aim, the A70 wants to jump around several pixels worth of movement. (sometimes up to about 1/4 the hight of a bird) On my Nexus 1 and G-tablet I could adjust aim down to pixel sized movements.
It may be due to being close to the screens edge, but I was wondering if anyone else has noticed this. It is not a constant issue, but touchscreen response definitely seems less precise all around when playing the game. Most other apps I use do not need such fine adjustments, so I can not tell if this happens in them as well.
Edit: Downloaded a multitouch tester. (multitouch vis test) This app plots your finger with x,y cords and a visual dot. When moving slowly, both tracking methods made small jerky hops rather than following my finger smoothly. I have never had this happen with any other android device. And yes, I did try the screen calibration in settings several times.
Click to expand...
Click to collapse
please try: Settings->Repair->Touchscreen Calibration
Hi _nz_
Did you read the op last sentence.
"And yes, I did try the screen calibration in settings several times."
I have noticed this same issue on my 70.
Hmm, maybe I should start a poll. Try to get a rough guess at the ratio of those with and without this issue.
I also have this problem with my 101. Sometimes the game has frozen completely. I mean freeze as: the screen freezes but the game continues. I can hear the audio still. If I am firing off a bird it will freeze and I can hear the bird continue to fly and break things but can't do anything about it. I have to exit the game and then jump back in. Really annoying when you are at the last move to beat the level. :-( There doesn't seem to be any fix that works for me of the things I've tried. Very frustrating. Still love the unit though!
I don't see this issue on my 70. I'm not too good at ab though, maybe that's the reason.
I see the same issue on my 101. Hard to make fine adjustments.
CrunchyDoodle said:
Are you using an App Killer before starting Angry Birds? I use the System Monitor to kill all unneeded applications to get at least 90 MB of free RAM before started Angry Birds and it runs very smoothly with excellent response from the touchscreen.
Bye.
Click to expand...
Click to collapse
Agreed. Kill other apps to gain more memory before playing AB. It will then plays smoothly.
Sent from my A70S using Tapatalk
bthoven said:
Agreed. Kill other apps to gain more memory before playing AB. It will then plays smoothly.
Sent from my A70S using Tapatalk
Click to expand...
Click to collapse
This has nothing to do with the game not playing smoothly. It is about touch screen response. I have the same issue when using a 150kb multitouch visualizer app on a fresh reboot.
Related
http://forum.xda-developers.com/showthread.php?t=730606
This bugs me now. Makes playing games like doodle jump or anything using accelerometer not good....
The app android sensor data does make it work correctly, but why is this?
This bug is a big one....
temperbad said:
http://forum.xda-developers.com/showthread.php?t=730606
This bugs me now. Makes playing games like doodle jump or anything using accelerometer not good....
The app android sensor data does make it work correctly, but why is this?
This bug is a big one....
Click to expand...
Click to collapse
I saw this while using or attempting to use Layer screen would go all crazy up down left right.
talltexan said:
I saw this while using or attempting to use Layer screen would go all crazy up down left right.
Click to expand...
Click to collapse
Close layers completely. Then run that app above and go back to layers. Should work now.. it works for the games... I just start that app after every reboot and it somehow calibrates the accelerometer. ...
Truly software not hardware or that apparently wouldn't make it work right...
I love this phone but Samsung needs to iron out some thing... that said ill keep it and hope Samsung delivers.. even if not its the best out IMO....
Common Samsung.
I noticed that when I reboot, the accelerometer functions well enough. It seems as if performance degrades over time.
When I first launched 'Homerun Battle', the shadow for the bat was completely erratic and impossible to use. After rebooting the device, it was playable. Once running that calibration app, it's smooth as silk. The device is definitely plagued by some annoying bugs. Who knows if Samsung plans to fix them or not. I wish they'd just come out with an official statement so we could stop worrying.
Asphalt 5 was super buggy. I didn't notice any improvements either way. The car would randomly teleport, sound would cut out and so forth. Papijump seems just as playable to me, either way (degraded, rebooted, calibrated).
Weird.
Jon C said:
I noticed that when I reboot, the accelerometer functions well enough. It seems as if performance degrades over time.
When I first launched 'Homerun Battle', the shadow for the bat was completely erratic and impossible to use. After rebooting the device, it was playable. Once running that calibration app, it's smooth as silk. The device is definitely plagued by some annoying bugs. Who knows if Samsung plans to fix them or not. I wish they'd just come out with an official statement so we could stop worrying.
Asphalt 5 was super buggy. I didn't notice any improvements either way. The car would randomly teleport, sound would cut out and so forth. Papijump seems just as playable to me, either way (degraded, rebooted, calibrated).
Weird.
Click to expand...
Click to collapse
Asphalt 5 runs well for me if I calibrate it using the app....
For GPS and compass issues, but never have seen any evidence. .. anyone got a link, I'd just like to see it with my own eyes instead of speculating. ... thanks
Didn't think there was a statement directly from them.
I think you're right that there's no official statement from them. I think it's just what people have heard from the tech support folks at Samsung (and now also from TMo).
i just spoke to a rep and they've stated that *there aren't any updates planned to be released by samsung* *if they do, there will be information on the website* i kindly told them that they need to fix the slow screen to screen scrolling, gps, error connecting when using friends feed and replying to someone
other than that, the phone is excellent.
wrong thread. ignore.
stepinmyworld said:
i just spoke to a rep and they've stated that *there aren't any updates planned to be released by samsung* *if they do, there will be information on the website* i kindly told them that they need to fix the slow screen to screen scrolling, gps, error connecting when using friends feed and replying to someone
other than that, the phone is excellent.
Click to expand...
Click to collapse
Try a game using the accelerometer. .. its extremely fubared. .. try doodle jump or hell a free one hyperspace lite. .. you will see how messed up the 6 axis motion sensor they tout is.
temperbad said:
Try a game using the accelerometer. .. its extremely fubared. .. try doodle jump or hell a free one hyperspace lite. .. you will see how messed up the 6 axis motion sensor they tout is.
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Click to collapse
Just tried hyperspace lite. Thanks for the suggestion. Its pretty cool.
That makes three games I have players that use the accelerometer for controls (also replica island labrynth) and so far I find the accelerometer to be excellent.
WAY better, or instance, than playing similar games on the wii.
I just emailed Samsung about the issue, and asked them what the time frame of it being publicly addressed and fixed would be. I suggest everyone having issues do the same. I have not heard back yet, but will post their response when I do.
I also just got off the phone with T-Mobile tech support. They said they will not swap the phone out for the GPS issue, as it's a known issue and a different unit will not make a difference. They also had me do the keypad fix, (*#*#ect.) and it didn't give me any different results from the last time I tried it, other than the loss of signal I had last time.
I asked what Samsung has said to them about the issue and her response was there is no timeframe on when this will be fixed, but Samsung is aware for of the issue and are working on it.
Basically the same stuff everyone else is saying. 6 days left for me before I return the phone. I hope something happens soon.
beren28 said:
Just tried hyperspace lite. Thanks for the suggestion. Its pretty cool.
That makes three games I have players that use the accelerometer for controls (also replica island labrynth) and so far I find the accelerometer to be excellent.
WAY better, or instance, than playing similar games on the wii.
Click to expand...
Click to collapse
On the contrare. . Try homering battle 3g. There you will see... after that you will no what I mean and every game using the accelerometer takes a split second to really orientate......
It is flawed. ..
Or try hyperspace again and pay attention... then close it and download android sensor data... open that app, now go back to the game and notice how Mich faster it moves and how Mich more it responds... another game is speedx 3d... so hard to control then open android sensor data and its smooth as butter...
Please check again, it works sometimes like the first time then after that you will notice slow response. ..
beren28 said:
Just tried hyperspace lite. Thanks for the suggestion. Its pretty cool.
That makes three games I have players that use the accelerometer for controls (also replica island labrynth) and so far I find the accelerometer to be excellent.
WAY better, or instance, than playing similar games on the wii.
Click to expand...
Click to collapse
Try papijump..... notice how when you tilt it takes a second for the dude to respond to ya movement. .. then close it completely, open android sensor data and try again, its a lot smoother...... like the app calibrates the sensors or something...
We need more people to see this issue as not many people know about it... but I play games using accelerometer and notice its not right until that apps started first.
Tried your sensor data trick. Not noticing any difference.
eta: I have always sucked at these types of games on the wii or other phones, but I am doing quite well (comparatively) on the vibrant.
beren28 said:
Tried your sensor data trick. Not noticing any difference.
Click to expand...
Click to collapse
OK have you tried homerun battle 3d? If you don't have it ill pm you... I need you to see this..... I know its there....
Downloading the lite version now.
beren28 said:
Downloading the lite version now.
Click to expand...
Click to collapse
Cool. That should work... it may be smooth on try 1. But exit completely and try again, the shadow on the bat chops around and its supposed to be smooth.... then once choppy try that app again...
Thanks for testing this.. I've read others have same issue just no one really can see. This game should do it though...
I pmed you also..
Edit: if ya already opened that sensor app it wont play bad....
Must reset phone, don't run app, then try game, then when ****ty open app it'll fix everygame... but since ya opened it it will run smooth... must reset.
After completely resetting the phone, I am no getting what you described. Was definitely not seeing this before reseting, meaning something else I had done had "fixed" it somehow. No idea what.
beren28 said:
After completely resetting the phone, I am no getting what you described. Was definitely not seeing this before reseting, meaning something else I had done had "fixed" it somehow. No idea what.
Click to expand...
Click to collapse
Its not major, just a slight stutter which in really meticulous games like asphalt 5 speeding around corners it will effect you...
But run that app after reset, even close it, for some reason now the sensor is flawless. Lime the app calibrates it somehow......
I was cool on all bugs till this, cause I'm a gamer, but luckily someone found that app in another thread, makes it flawless....
Its like first time ever playing the app, it plays fine, but then next time its wack... really strange. I can't believe no one else noticed on games like those, I notice the slightest weirdness.
Has anyone noticed this? Wherever there's something to scroll, web pages, menus etc., the motion is sort of stuttering as long as you keep your finger on the screen. When you release your finger and "throw" the page, it goes smooth. This makes me think that it's not a graphic performance issue, but it's more like if the resolution of the capacitive touch screen was lower than the actual display. I hope I'm wrong and it's software related...
Software related, doesn't always do this.
Edit-
On second thought I am not sure, sometimes it does this really badly and other times it is completely smooth. If we didn't have full resolution touch you would notice it on a multi touch test app.
Sent from my GT-I9000 using XDA App
I think I have found the cause.
Cpu scaling!
Lock setcpu to 1 ghz and it is much smoother.
What is happening is the cpu speed keeps throttling and jumping back to full speed causing problems
Sent from my GT-I9000 using XDA App
Actually...still unsure...ideas anyone?
Sent from my GT-I9000 using XDA App
"Problems" with CPU speed jumping up and down? Those are not problems but a design decision (jury is still out on whether the implementation is done right) to save energy.
Of course you can crank everything up to the max and never put peripherals or the CPU to sleep, but please don't start complaining when your battery runs flat before the day is done.
They set the ramp down cpu speed timer far too short. This can be modded in a kernel anyway.
Using a multi touch test we have at minimum 600x300 touch resolution, way more then enough to have lag free scrolling.
There's an acer android phone out with only about 32x 24 touch resolution. They manage
Sent from my GT-I9000 using XDA App
I don't think it's related. I'm experiencing this even with the cpu locked in performance mode. On the other hand, using a multitouch test app, I was able to move a pointer pixel by pixel at what seemed to be the screen's full resolution, so touch res is not the cause.
It's quite annoying cause even if you want to launch a fast scroll of, say, your contact list, you get that initial ugly small stutter... when browsing the internet this ruins the experience even more, since you are likely to keep your fingertip on the screen more.
Dunno about you guys but uninstalling Gesture Search by Google fixed it for me.
Never had that on my phone...
Bump... am I the only one bothered by this?
Am I?...
Rizlo said:
Am I?...
Click to expand...
Click to collapse
Could be, I had a HTC HD2 and it suffered from that problem alot. numerous videos have been posted on youtube because of it as well.
One possible way of minimizing the problem is to electrically discharge your screen, by putting an electric conductor, such as metal on it to remove and negative/postive ions still hanging around. Read that up somewhere and it somewhat helped my HD2.
Personally i have only experienced once on my Sgs and have not been able to replicate it since.
If you have big fingers that could also be a problem as the touch sensor can't decide on where to locate your finger...
Thank you for your answer! The electrical conductor you mentioned should go somewhere to discharge though... I can't walk around with a ground wire hanging from my phone all the time Plus, I really believe it's software. I know it always goes there but... iPhones have similar technology but they always scroll smooth. maybe it's interpolation we're missing here.
Btw I have particularly small hands!
Discharging it only has to be done only when the problem seems to be worsening. just try not to place your entire thumb on it but rather use the tips of yours fingers, that way it doesnt jerk.
I have to say this problem is pretty consistent, hence not worsening (or improving) whatsoever in any circumstances. It's just not fluid, ah my Touch HD used to be, but that was because of poor GPU (driver); we know that can't possibly be the case here, and as a matter of fact, regardless of load, stuff in the background etc, it's there all the time.
But as soon as you release the fingertip, the "inertial" part of the scrolling just goes as smooth as possible.
So I'd dismiss the electrostatic explanation, it seems like it was a non-interpolated low touch resolution... except that it's not...
Hi Folks, I have noticed the same problem running eclair 2.1 with Ryan's one click lag fix applied (the lag fix did speed it up quite a bit too!). It seems to do it after coming out of 'sleep' mode i.e when I wake it up from blank 'screen saver'. After a few scrolls or taps it starts to smoothen out a bit, but still not as I would like it to be.... Just my observations and sorry I can't offer up any Solutions... Any word if 2.2 update will make things better? Also, does anyone know when the update will hit Australia?
Welcome to android world, iphone users.
The world where not everything is super-smooth.
Actually it might be related to smoothing of touch input. Btw my scrolling is quite ok, but I come from Sybian world, world of lag.
xan said:
Welcome to android world, iphone users.
The world where not everything is super-smooth.
Actually it might be related to smoothing of touch input. Btw my scrolling is quite ok, but I come from Sybian world, world of lag.
Click to expand...
Click to collapse
'smoothing of touch input'? could you please expand on this?
BTW - I Never owned an iFone, and don't really go for it's comunistic ways... (although some people take comfort in it! )
Hm, touchscreen sends raw data to driver (noisy, with peaks) to driver. Driver cleans and interprets them.. (unless its done in TS firmware)
I think that more cleaning and smoothing at this stage would result in smother scrolling, but not-so-precise tracking (when drawing, etc).
I'm just speculating here, because I have no real knowledge about this.
OK... Although it seems like there is a delay in reloading to short term memory when coming out of hibernation? Would this sound like a place to start looking? if so, anyone have any ideas on how to manipulate this function?
I see this sometimes in the browser, but occasionally when playing games too. I'm chalking it up to a software issue since it only seems to happen when either rendering webpages or games (never on home screens or when watching vids, or in any other apps). Just wanted to be sure, though--anyone else?
I've seen some flickering while playing Angry Birds. Haven't seen it any other time so like you I'm thinking/hoping it's not a hardware thing.
I've seem some flickering in one game only-Nano-Pandas (full version, the lite version didn't have this problem). Sometimes while using flash.
i get the flicker consistently when i scroll in the fb app
It's becasue you're all suffering from tomkingtons desease, meaning you are constantly blinking five times a second, surprised you haven't noticed it before
i have noticed it when opening the browser, was worried but home screen and video play back are okay so I also assumed it was software related
eb50 said:
i get the flicker consistently when i scroll in the fb app
Click to expand...
Click to collapse
+1 But don't see it elsewhere, which makes me thing it's software...
Ah good, it's not just me then. Either something in Honeycomb or Asus' kernel, perhaps. Cool, thanks guys.
It's a known honeycomb software bug, some transformers will periodically flicker when using the stock browser or certain games.
And I thought my screen was failing... I noticed flicker AFTER the 3.1 update...
Sent from my Transformer TF101 using Tapatalk
I see flicker while playing PvZ HD but not in Fruit Ninja THD.
I couldnt see a thread on this and I thought its quite interesting, especially the video where it shows angry birds working after the "Home" button is pressed, can anyone else replicate this? This could be a sign that faster moving text/images are possible with this hardware?
http://blog.the-ebook-reader.com/20...ther-games-do-work-on-the-nook-touch-kind-of/
Well, you have to sideload a copy of Angry birds first, then try to run it. I'm not truly interested in seeing animation, as the screen does not refresh fast enough. Rather have slower games (card games, chess, checkers, backgammon).
After I get my market back, I'll try it, just for the sake of it...
apeine said:
Well, you have to sideload a copy of Angry birds first, then try to run it. I'm not truly interested in seeing animation, as the screen does not refresh fast enough. Rather have slower games (card games, chess, checkers, backgammon).
After I get my market back, I'll try it, just for the sake of it...
Click to expand...
Click to collapse
Oh I agree, I dont think that anyone should expect a good playback of a fast moving game like angry birds, however like you say slower games like strategy or turn based games would be good and its mostly just interesting to see how fast the screen can actually refresh (check out the video, some of the animations actually look like an LCD screen in black and white) so I just thought it would be interesting to see what any developers could do with that
Heres an example, the pulse news app
http://www.pulse.me/
This is an excellent news aggrigator that would be fantastic on the touch, however as the app uses a few simple animations (requiring you to "swipe" along the news to find what you want) then I would imagine the nook touch screen wouldnt be able to keep up, however if a dev was able to work out how the screen refresh rate was being done higher like in the "hack" above, I had thought that would make this app usable on the touch
We can have fast moving graphics, as I've seen from the article in the e-reader site. There was no hack done. Problem is ghosting due to slow screen.
There is a connect 4 game for android, which had animations for playing the pieces (sliding down from the top), and when you use "nook STR options" (no texture, no animation, etc) it is quite playable. CPU speed for animation is no problem. That is why Eded is offering a way to undervoltage the cpu so it would use less energy, as the screen refrains from using more powerful programs (animations and things of the sort).
apeine said:
Rather have slower games (card games, chess, checkers, backgammon).
Click to expand...
Click to collapse
Funny you mention that; I have just now finished tweaking my solitaire game especially for a rooted NST! This is a special version for XDA, equivalent to my full paid app, but optimized for the NST, and in fact it will only run on the NST. It's especially good with the 1.1 firmware, which updates the display noticeably more efficiently. Here it is, if you want to give it a try.
My thanks to XDA for all the help I've gotten here over the past couple of years.
Will try by lunchtime. Thanks for that, CSX.
And BTW, I've tried angry birds, and it is kind of silly, because after you launch, you only get to see the results, not the flying bird hitting the pigs. Is that CPU or screen problem?
apeine said:
I've tried angry birds, and it is kind of silly, because after you launch, you only get to see the results, not the flying bird hitting the pigs. Is that CPU or screen problem?
Click to expand...
Click to collapse
I think it must be the screen. The NST has an 800Mhz processor. My phone is running at 767Mhz, and Angry Birds runs okay on it.
CSX, thanks for the great game, very enjoyable, and now it is my official timewaster, besides reading
And BTW, I've tried angry birds, and it is kind of silly, because after you launch, you only get to see the results, not the flying bird hitting the pigs. Is that CPU or screen problem?
Click to expand...
Click to collapse
Its partly the screen, although as shown in the post at the start there is obviously something in the software that is restricting the referesh rate as well since the video shows that in "sleep" mode, the graphics are moving a lot quicker than they do normally.
Funny you mention that; I have just now finished tweaking my solitaire game especially for a rooted NST! This is a special version for XDA, equivalent to my full paid app, but optimized for the NST, and in fact it will only run on the NST. It's especially good with the 1.1 firmware, which updates the display noticeably more efficiently. Here it is, if you want to give it a try.
My thanks to XDA for all the help I've gotten here over the past couple of years.
Click to expand...
Click to collapse
Thanks for that, have made a note to install this once I get my nook touch
Slitherlink is just superb on e-ink ))))
(Can't post a link)
I found some more nice games:
Curvy (it is just gorgeous on e-ink. For two colored puzzles you have to set the second color to the middle between white and black).
NemoNemo Picross.
Droid Fish. One oft the best chess engines with a very nice sleek design, perfect for the touch ;-)
Shift. Black and White! Sadly almost unplayable without multitouch.
I want to thank everybody for your work on rooting the touch. Im working on social impact of game playing - the last hours have been a very special game experience.
Best Regards
The crossword puzzle app from the stock nook color rom works, I used titanium backup to copy it over and restore it on the str. I tried the same with soduku but no joy there, the screen size doesn't work.
@FloydF: Try Andoku.
I wasn't able to get angry birds or Rio to install.
But Angry Birds Seasons is compatible and installed and ran fine.
I just bought the Nook Tablet for my son at Barnes and nobles with a 40% off coupon.
I followed the root guide and cleaned off all the bloat and replaced with GAPPS and Go Launcher (to hide apps in the app drawer).
I quickly started copying over games from my collection off my Galaxy Nexus via WiFi Explorer.
I downloaded Angry Birds Seasons and it worked no problem. Every game I installed worked. The problem with the market is that the Nook "doesn't" have market access. We all should know the market looks at your build.prop to determine your device (Nook Tablet) and doesn't see it being supported by anything.
So what you DO see are apps with no requirements. This doesn't mean they won't work. You just have to side load them somehow. Either find the APK and side load or a restore a Titanium Backup.
It had no problem playing games. The OMAP processor is new and a good one. Its a step down of what is in the Galaxy Nexus. All the games we put on there played flawlessly.
Galaxy Nexus - 4.0.3 CM9
Asus Transformer - 3.2 Revolver
CSX321 said:
I think it must be the screen. The NST has an 800Mhz processor. My phone is running at 767Mhz, and Angry Birds runs okay on it.
Click to expand...
Click to collapse
The Nook Tablet has a dual core 1Ghz OMAP processor. Little brother to the Galaxy Nexus. Its no slouch.
I have no ides what you guys are talking about with the slow screen. Games looked no different then on my Transformer or various phones. There "maybe" some ghosting but I didn't notice anything when we played some fast paced games.
Also what's this about no multi-touch?
I think the original Nook Color had some same deal where multitouch only worked in the browser or something.
Great little unit IMO.
Galaxy Nexus - 4.0.3 CM9
Asus Transformer - 3.2 Revolver
player911 said:
I have no ides what you guys are talking about...Also what's this about no multi-touch?...
Click to expand...
Click to collapse
We're talking about the Nook Simple Touch, with the black and white e-ink display. You can't install apps on it at all without rooting it, and not everything works well on the e-ink display, because it refreshes so slowly.
Playing Angry Birds on the NST is... interesting to say the least. I found that if you hit the N button as you pull back on the bird (before releasing), you can still move the bird around. When you do release, the screen won't pause, but it will look like the bird is on fire and is leaving a massive trail behind it.
Unblock Me Free runs well on the Nook, no problems other than some ghosting, but it can be used to see where the block was previously, and when you clear the puzzle the screen refreshes entirely.
it is still slow. and you need to press home button every few seconds