This unholy union of wiimote and tribble looks to be a pretty relaxing way to move your cursor around, but somehow I don’t see it catching on in the mainstream. All you need to do is cannibalize a normal optical mouse, make sure it’s got batteries and a “hull” and you run your thumb over the sensor, making for a sort of optical trackball. Looks pretty weird, but it might be handy for undercover types who need to move the mouse from their pocket without attracting attention. It also might be a handy peripheral for this little app.
SOAP Mouse Works In Midair, Not For Bathing [TechEBlog]