The new pint sized entry into 3D motion control by a company named Leap Motion seems to have taken the online tech world by storm. 4 out of 5 tech websites agree that the new Leap device has the potential to give motion control technology a much wider use than video games. Boasting accuracy close to one hundredth of a millimeter, the Leap tracks multiple movements, can chain devices together and is smaller than an iPod. Compatible with Windows and Mac OS X, you can pre-order the USB peripheral for $70.