Meet Gest: a smart wearable device that lets you control your favorite smart devices and apps using your hands. It is a versatile device that lets you tie hand movements to any action that you want. It understands your hand and finger positions accurately with its 15 sensors.
Gest can be used to turn on the lights, work on 3D models, control Photoshop, and do a whole lot more. Of course, it has virtual / augmented reality applications. You can find it on Kickstarter.