I don't use the XBox system, but I'm fascinated by the Kinect technology Microsoft is rolling out next month for the XBox360 system. Looking at the video below, it's clear to me that while this is a gaming tool now, this approach to controlling all of your entertainment (and other technologies) using only gestures and voice commands is at the core of what's coming down the pike.
For those of you who like to read, here's the Wikipedia article explaining the history & technology of Kinect. If you're more of a visual learner, just watch the YouTube video below demo-ing Kinect.
I'd almost get the XBox to be able to play with Kinect. Can't wait to hear how it does in stores.