Optimus released a demo for the GP2x.

This is a fast made scene demo done in less than a week to support the combined demo compo of Pixelshow demoparty. It ranked 3rd.

Featuring some old and few almost new stuff (bilinear filtering, box blur, alpha blending, etc.) in a coder’s demo done in a hurry. Some parts are not as smooth as I’d wish but still there are few impressive stuff in it. It uses the ogg940 player by Dzz and some precompiled version of mmuhack to gain a bit in performance.

http://optimus.demoscene.gr/mystuff/demos/gp32x/re-re-recycleGP2X.zip