I tried several times to get in contact with the developpers, and they don't seem to want to open the projects to many developers... I tried linux actually, thanks to Don which has precompiled kernels, and it boots!
At least you see a pinguin on your GP32, and a bash prompt... but there is no way to interact, except with a serial cable.
One good point if linux was ported would be that we would instantely benefit of many applications... like image viewers, sound players...
And with a little tweaking (put the USB controler in host mode) it could be possible to plug anything on the usb port, like harddrives or webcams!
Actually I tried to cross compile mplayer, with the resulting binary was too big to fit in the ramdisk.
I then tried to compress in bz2 it and decompress it in the GP32's ram, but it didn't work either...
Apparently some things are not really working... for instance, the time seems to be slow (ie: sleep 1 will pause more than 1s)
I tried to cross compile mpg123 and tiny image viewers as well, but none worked... I stopped working on it because I don't have any serial cable, but I might get one...
It would be great if the USB cable was used instead!
I'd like to help the developpers, but it seems they don't want any help yet! Anyway I hope the project will succeed soon.