I know a lot of people complain about how many button presses it takes to do particular tasks, and I may have a solution (granted, it would require a whole new control panel). The chumby has the ability to register someone dragging their finger across the screen (heck, we were even shown that during the intro), but nothing in the control panel takes advantage of it. I think if a series of gestures were developed, it would speed up navigation significantly.

For example, when you're on the music screen, dragging your finger horizontally could select a music source, instead of pressing the source and then the Go To button. I'm sure gestures like these could be fit in all over the place to make operation simpler and faster.