Simple Dev Studio is a very small IDE for GP2x SDK (0,3 mb) for those who want to make small applications without the need of a +500 mb Visual Studio install. The IDE itself contains and needs only the official GP2x SDK and additional SDL libs or minimal libs to work.

http://www.gp2x.de/cgi-bin/cfiles.cgi?0,0,0,0,14,2429