Remember the movie "Minority Report?" Tom Cruise uses hand gestures to control the computer – scrolling through screens, bringing up data, zooming in on photos... it was all pretty cool, wasn't it?
We've seen new interfaces that give us the ability to control games with gestures and body motions. And now we are getting phones (Samsung’s Galaxy S4 for example) that have gesture recognition. The new comer on the scene gives you control over any computer with a USB port.
Leap Motion wants to replace your joystick, your mouse, even your keyboard with their motion-sensing device. It's about 12mm by 80mm small and uses your hand motions and finger gestures to interface with your computer. You can use it in place of game controllers, drawing tablets, the mouse, etc. And it costs a lot let than an XBox 360!
Link to Leap Motion: https://www.leapmotion.com/