The Ainol V2000 looks like a really nice player. I looked at a firmware update on ainol.com and found out it contains parts of various open source software.
At least some of the code (VisualBoyAdvance for example) is licensed under the GPLv2:
"You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License."
This means that the firmware is now GPL licensed itself and it should be possible to get the source of the firmware from Ainol.
I've contacted Ainol about this a few months ago, but so far they have not responded.
Any idea what I or MP4 Nation could do about it?
btw, some of the Gemei players have the same problems. The X900 for example.