Apple has confirmed the acquisition of PrimeSense. They are best known as the folks who developed the original technology now used by Microsoft in its Kinect motion sensor.
Apple only recently confirmed the purchase, and as always, has developed the company line: Apple buys smaller technology companies from time to time, and we generally do not discuss our purpose or plans.” That’s basically the email you receive if you ask them anything about any acquisition.
What can we expect? Macs that let us control them by waving our hands around? Who knows.