Visual Boy Advance GX is a Game Boy Advance / Game Boy emulator for Wii and GameCube based on VBA-M.

Changes:

2.1.5 – April 9, 2010
* Fix auto-save bug

2.1.4 – April 9, 2010
* Fixed issue with saves (GBA) and snapshots (GB)
* Most 3rd party controllers should work now (you’re welcome!)
* Translation updates (German and Dutch)
* Other minor changes

Source: http://www.wiibrew.org/wiki/Visual_Boy_Advance_GX

http://code.google.com/p/vba-wii/