Hooka has updated RACE!, it’s a Neo Geo Pocket (NGP) and Neo Geo Pocket Color (NGPC) emulator for multiple platforms such as the GP2x.

Release notes:

Just thought I’d let this go into the wild. I released a new version of RACE! here! Haven’t quite gotten save states working yet, but cart saves should be saved more frequently now Also added usb joystick support, although it is very crude and just hardmaps the buttons atm :S Work still needs to be done to get save states working then add a menu, but atleast I’ve been making progress. It comes with selector, but I’d recommend ditching it and using gmenu2x and it’s built-in selector with the race binary (no extension) as this allows tv-out to work properly

http://www.gp32x.com/board/index.php?showtopic=45182