I think some people out there think that every MIT grad has home computers like Tony Stark in Iron Man.
So, do most people use touch-screen computers at home? Some do. How about talking computers? Maybe. Computers where you can navigate in the air using 3D gestures? Probably not.
Many people think of the movie Minority Report when they think about virtual navigation on-screen computing. I really don't think we're that far away when we see technology like Microsoft Surface and novel computing platforms on the horizon. They keyboard and mouse will soon become a thing of the past. Future computing platforms will rely primarily on voice recognition, touch, and multi-touch gestures. Those are my predictions.