Wii Remote used to control Virtual Earth
(via Spatially Adjusted) Here is a slick video showing a person flying through Virtual Earth using the Wii Remote (with a Nunchuk).
The movement is strikingly smooth. He's moving multiple directions at once (something you can't do with the Sandio mouse), and it almost looks on par with the Space Navigator.
I have a Wii, so I wonder how on earth you can set something like this up...