I've already written about this sort of futuristic gestural interface before and I love it! I can't wait until this sort of thing is available for home use.
Wait…! What did you say? It is!
More accurately, it will be. Currently dizmo is at kickstarter phase so no idea about how much it'll cost but suffice to say there are boffins working on it now. Dizmo is a software that can make the apparently flaky 'Leap Motion' work on a realistic level.
Science Fiction eh? It really does help push us to make our fantasies reality.
(I'm still waiting for my hoversuit though…)