I wrote a screen capture app that works for my Atrix since I couldn't find one that worked that was on the market. Here is the first version so I am looking for suggestions/bugs/improvements, etc.
I've only tested it on the atrix because that is the only phone I have, but if you guys could test it on other phones and let me know if it works or not on them, then that would be great.
Edit: Finally posting a new version. *Should* address most of the issues/requests I've seen unless I forgot something. Still haven't had a chance to test on any other devices but it will actually display errors now so I can see why the devices are failing.
0.6 - Fixed some bugs, screenshots should show up right away in gallery now, added an option to shutdown the services after grabbing the screenshot.
0.8 - Fixed shake sensor bug, added option to invert colors to fix colors for some devices, and service should stay on after reboots.
0.85 - Fixes for some crash reports. Better support for other devices.
Also, I finally added the app to market for those who want to get automatic app updates. I'll still post newest versions here for those that prefer to download from xda.
update: I haven't had time to work on the app at all lately so if anybody wants the source to fix any bugs or improvements then you can get it from https://bitbucket.org/mindphaze/screen-grabber