
Leap Motion Controller
The Leap Motion controller is a small USB device which is designed to be placed on a desktop computer or laptop, facing upward. Using two cameras and three infrared LEDs, the device observes a roughly hemispherical area, to a distance of about 1 meter (3 feet). It is designed to track fingers (or similar items such as a pen) which cross into the observed area, to a spatial precision of about 0.01 mm.

Controller in use
With a wave of a hand or lift of a finger, we can use our computer in a new way. It senses how you move your hands the way you naturally move them. So you can point, wave, reach, and grab. We can even pick something up and put it down, just like in real life.
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Controller connected to a Mac
We can browse the web, read articles, flip through photos, and play music just by lifting a finger. We can even draw, paint, and design with your fingertip. You can even use a real pencil or paintbrush. It is currently priced at $79.99.