Dwedit has released another alpha version of Goomba Color, which is a Gameboy Color emulator for the Gameboy Advance. A couple of games already have pretty good compatibility (a compatibility list can be foundhere). Changes:

Fixed MBC2 SRAM bugs

Supports roms trimmed bank by bank (in non-GBAMP version)

GBAMP version, with lots of aggressive memory management tweaks to increase performance

http://dwedit.home.comcast.net/