SDL MAME Wii is an Arcade Emulator based on SDLMAME. Many games for early arcade boards can be played with varying amounts of success.
Changes:
Upgraded MAME to 0.135
Added WiiMote Sensor support
Stereo support fixed
Game list now shows up to 150 ROMs instead of just 15
Changed USB/SD detection (Tries USB first, then falls back to SD)
Support: http://www.tehskeen.com/forums/showthread.php?t=15094