Alpha2
Heroic Autobot
Is it possible it was merely designed to be a truly hobbyist device? And isn't it strange, if that's the case, that there's pretty much no korean hobbyist development that's been done on it?
The point was to make a game system that competes with the GBA, it's that simple, the original intent was never to be an open source device as a lack of hobbiest korean programers would have doomed it even if that was the case.