I'm resuming this old thread because I have started a new porting project. This time my attempt will be aimed at GameCube and Wii
GBA and NDS portings are very stable now and I need a new challenge, so I have decided to investigate about adding these new targets to fpc.
I'll start with gamecube, because I already made some work on it. However, as far as I can see, Wii is a vitaminized GameCube (faster cpu/gpu, more ram) so, once we'll have a working gc porting, making a Wii will be pretty straightforward.
I have started a new page on fpc's wiki about GameCube. Feel free to add anything you think it could help