I'm trying to fix bugs in libndsfpc and the 2D part should work pretty fine now (well, at least it works fine in dkp 2D examples). I have decided to upload those 2d examples on libndsfpc SVN, so if you are interested, you can get an idea about how things work.

About 3D: several problems here... I'm going on very slowly, because I need to test all code on the real NDS. In fact emulators aren't very good in 3D stuff at this time