This is where you see the "real future technology" that was investigated and included into the movie "Minority Report" is getting into production. When that movie was made, they did tons of research into where computer technology- particularly human interface design, was heading. Love this stuff. Wish there were some companies in Lansing who needed interface designers, since it's my favorite aspect of development, but I've not seen one in the past five years.
Still- this kind of technology is awesome.