Homebrew on the Mattel HyperScan?

[Morph]

Has anyone fiddled with any type of homebrew on the system? It was just recently axed by Mattel, and can be obtainted on ebay hella cheap (like $10). Not only that, but it appears the console has ZERO copy/regional/media protection whatsoever.

In case if anyone needed the specs of the machine, its running a SunPlus S+ core SPG290 processor, with full specsheet here:

http://w3.sunplusmm.com/products/game/g290.asp

The actual specs for the console can be seen here:

http://en.wikipedia.org/wiki/HyperScan

If no one hasn't, I implore you to look into it. It has the potential to be a homebrew beast. The system appears to be running on an integrated version of eCOS, and has OpenGL ES 1.0 capabilities (forget it only being a 106~Mhz processor, can anyone say fullspeed Quake with hardware rendering?).

Not only are the controller ports standard PS/2 ports, but it has a blasted USB port on it, how hard can it be to hack the blasted thing?