Wiirtual Boy is a Wii port of the Mednafen Virtual Boy module/emulator. This release is considered a pre-release with updates to follow.

Wiirtual Boy (Pre-pre-release)
Watch this video on YouTube.

Thanks to http://gbatemp.net/t297995-wiirtual-boy and http://nintendomax.com/viewtopic.php?t=13569&f=54 for the news.

http://code.google.com/p/wiirtual-boy/