There's not much a mousepad needs to do to be considered successful. Basically, it needs to have a flat surface that a mouse can run over. That's basically it. Anything above and beyond that is just overboard.

And overboard is exactly what this "mousepad" is, seeing it features such extravagances as a calculator, a thermometer, USB hub, and memory card reader. Do you really need all that crap attached to your mousepad? Why can't a mousepad be happy just keeping your mouse rolling around smoothly? Just be happy with who you are, mousepads. No one is asking you to be anything more. — Adam Frucci

Wacky Mousepad, via Red Ferret