[Th3_uN1Qu3]

Well, depending on the players you'll have to learn either Z80 assembler or ARM assembler. Z80 cores are found in cheaper devices (particularly Actions players), but ARM seems to be the way everyone is headed in.

However it would make more sense to write in a portable language so we can develop on a PC and then port the code to the player. But since that probably isn't possible due to firmware issues, we'd have to code an emulator for the PC then work our way around to developing games.

Any way we take it, the next generation of players will be out before we make any significant progress.