Which MP4 to buy - Wants to start development
 

Guys,

I got an MP4. I disassembled it and it has the rk2608a chip. As the firmware does not have any game menu, I cannot develop games/applications for it.

Now, I want to consider another MP4 that I can customize its firmware by either developing new applications/emulators or change its firmware completely. I prefer a touch screen one with 2.8 to 3" LCD. Any suggestions?

Thanks.