The user interface has been pretty much locked into the mouse and keyboard for a long time. That must change in order to make any kind of real advances into augmented reality and wearable computers. If you have seen the movie “Minority Report” you may well remember some interesting ways to interact with computers and networks. The video below, of Minority Report science adviser John Underkoffler as shown at TED, shows that this technology is already a reality and could perhaps be in your hands within a few years.
And here is an invisible mouse or as MIT calls it, “Mouseless”:
Finally here is another talk from TED (and Pranav Mistry) from a while ago, “The thrilling potential of SixthSense technology”: