If you haven't seen these videos before, they're definitely worth
viewing.
Johnny Lee is a researcher at Carnegie Mellon who has been working on
ways that you can use the Wii's controller to create interfaces for
PC's. You can connect the WiiMote to any PC with a bluetooth
connection, and from there the software you create for it is bounded
only by your imagination. The results here are pretty remarkable.
This is another example of overlap between games and conventional UI's.
http://www.cs.cmu.edu/~johnny/projects/wii/
John Ferrara