You should be-able to port over GnuStep using the X11 port for the GP2X. Although, the screen resolution will be sort of squished.
Wikipedia info:
http://en.wikipedia.org/wiki/GNUstep
Project website with source code:
http://www.gnustep.org/
Happy porting
what do I need to do to port this? I've got gp2X11. Assuming I find the source code for GNUstep, what do I have to do with it?
Ima a nublet.