I got my prototype game running on the GP2X last night. There’s still something wrong with the projectile trajectory, but it was very cool to compile the program on my PC and then copy it over and see it run on the small screen.
If you’re getting into GP2X development, definitely check out the GP2X Dev Wiki, especially the section on setting up a development environment. I followed the instructions for Windows and everything worked perfectly.
I’m still not very happy with DevC++ as an environment though. I looked at CodeBlocks and didn’t like it. Eclipse looks promising but very complicated. I may just end up going with Visual Studio since that’s the environment I know best.