Have you ever used a pointing device that wasn't a mouse? I've used a trackball and touchpad, but they didn't make me change from my mouse. When I discovered the Pen Mouse by Genius, I figured it was worth a try, especially since I have been experiencing some wrist pain using the mouse. Who knows, maybe I'll convert. To be very clear, the Pen Mouse is a mouse and not a tablet-type pen. I've tried to draw with it, but the results are no better than if I use a plain old mouse.
The Gadgeteer , Genius Pen Mouse review, Genius Pen Mouse review