It's not all in the wrist
When it comes down to it the mouse hasn't evolved all that much over the past couple of decades: they're only marginally more ergonomic than the mice that came out in the early Eighties and are almost certainly responsible for our complete inability to sign our own name or scrawl even the most barely legible note by hand (why do you think we bought a Treo?). A few engineers at Iowa State University fed up with the current state of affairs decided to invent a better mouse that's supposed to take all the pressure off of your wrist. The result is a sort of baseless joystick with a pressure plate at the thumb-end for moving a cursor around and two buttons on the side for left- and right-clicking. Does it do the trick? We don't know, but we'll be sorely disappointed if it turns out to be just some sort of fancified touchpad that you hold in your hand.