Have you seen the movie: Minority Report? When Tom Cruise moves his finger, the display in front of him show what he want. I always think that movies are direction of technologies, people have imagination, movies show the imagination to screen, and technologies turn it into real!!
http://www.youtube.com/watch?v=ZfV4R4x2SK0
http://www.pranavmistry.com/projects/sixthsense/
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