OhBoy is a Gameboy/Gameboy Color Emulator.

Release notes:

OhBoy is a Game-Boy/Game-Boy Color Emulator. Currently binaries are available for the GP2X Wiz. GP2X(F-xxx) and Pandora Support is planned.

It is based on gnu-boy 1.0.3. The core sources have not been modified in anyway but rather OhBoy provides a graphical front-end and GP2x-centric back-end tailored for portable gaming.

OhBoy is currently beta software and has been somewhat rushed (along with these docs) in time for Christmas but I hope you enjoy.

Discussion: http://www.gp32x.com/board/index.php?/topic/51067-ohboy-a-gameboy-color-emulator