Such a device from Apple would have multiple uses. Imagine the 10.1" pad in a magazine-thin form factor on a coffee table, interfaced to your iMac. You could also have an advanced remote control for Front Row, a special multi-touch iPhoto viewer/editor, the same for iMovie, multi-touch oriented apps for Facebook, and a Twitter widget that could float in from the background.

Done right, a device like this could rule the living room!