gpSP2X is an official GP2X port of gpSP, a GBA emulator written from scratch by Exophase. But it’s more than just a port, as zodttd has tweaked it specifically for the GP2X with features such as overclocking the CPU, RAM, and LCD tweaks.

New in v9008:
– Updated the way autoframeskip works. Should be better now. Still has a max frameskip value.
– Added a slight performance increase to the dynarec.
– Added sync() to make sure files such as savestates and in-game saves are saved properly to the GP2X.

http://www.gp32x.com/board/index.php?showtopic=35943