ZED by Stereolabs : The World's First 2K 3D Depth Sensing Camera
ZED brings 3D camera tracking to developers of mobile virtual reality applications. Using advanced computer vision technology, the ZED understands how you move through space and allows you to develop free movement mobile VR experiences. Supports Unity. More info and a video presentation here under.
The ZED is available for USD 449. For details, visit Stereolabs.com.