Didj homebrews?

Apparently via reading this site, it is possible. In case you don't know what a Didj is, it was a handheld made by LeapFrog that was (sadly) discontinued earlier this year. I wish I could do the stuff outlined on this website, but I don't know the first thing. It looks like you need to know your way around Linux. While reading the site, I found some interesting things, like a GBA emulator (the picture of Mario Kart Super Circuit on the Didj was quite entertaining.) as well as a modified Didj to run on your TV and handheld at the same time (requiring soldering skills.) Anyone else have a Didj or am I the only one, and did I mention I'd like to see some homebrews? I think a GTA clone (like the DS or GBA version) would be pretty entertaining!