Pinch a zoom on your computer :
Yes it is now possible to do all that you can do on a touch screen tablet on your computer ,with the help of the leap motion device . Listed for pre-order the device cost's just about 70$ and can even be shipped to india for a shipping cost of 12$. These kind of technology mostly could replace a conventional mouse and keyboard and can also be enabled in portable devices such as tablets and phones where a virtual enabled controller can be enabled .Ten years ago sci-fi movie Minority Report, starring Tom Cruise, showed a mesmerizing new way of controlling software interfaces – by waving your hands and making gestures in the air in front of the monitor (a giant monitor wall in the case of the movie). Well, we’ve all seen Kinect and what it has done to home gaming but we are yet to witness the next revolution – commanding your run-of-the mill Windows or Mac OS computer with similar hand gestures in the air.
This technology tracks all ten fingers and can also track your arm movements , a pencil and even chopsticks now that's technology
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