If you saw the movie "Minority Report" (based on a Philip K. Dick short story - PKD was a true master sci-fi writer!) you saw characters like the one played by Tom Cruise using a gloved interface for computer use. He would put the glove on and then point and move objects around on the computer screen. Pretty cool stuff.

Now it's no longer science fiction.  Jeff Han gives a great demonstration of this new technology on the TED website ("Ideas worth spreading").

To be able to manipulate objects - everything from glorified finger painting or sculpture-like capability to advanced photo editing - will revolutionize the way we use computers.  "Point-and-click" will seem oh so quaint someday when this technology becomes commonplace.

It's called Multi-Touch Interface.  See more here.