Forget touchscreen and multi-touch. That stuff is old school. One day, touching your computer will only be something your parents did. We'll all chuckle about those greasy fingerprints and smudges we left on those screens, and the constant wiping off of grime from the display.
No, the future of human-computer interaction will be gesture-controlled and touchless, and Microsoft Research is demonstrating that in how it's expanding the use of its Kinect.