Microsoft is close to enhancing the Kinect with hand gesture recognition. The Kinect’s hand detection will soon allow app developers to implement features such as pinch-to-zoom in apps thanks to a new handgrip detecting capabilities.
An updated SDK, due in the coming weeks, will open this functionality up to pave the way for gestural equivalents of the mouse click.
Microsoft is only releasing this functionality on Kinect for Windows, not the Xbox at this time.
Some Video from The Verge.