Create Digital Music has an article about some interesting ways on how to use your Wii equipment, including the Wii Loop Machine by The Amazing Rolo, which looks like a blast to play with!

The Wii Loop Machine is a system for using the wireless Wii remote to sync, control, and manipulate loops in real time.

Check this video to see what that means.

Wii Loop Machine software

The software is created with Max/MSP and runs as stand-alone software on Mac OSX (10.4.8 or 10.4.9 recommended).

Check The Amazing Rolo for more information and a link to download the Wii Loop Machine for Mac OSX.