In a move to streamline things Microsoft will be ceasing the sale of the Kinect for Windows and instead sell the XBox One Kinect and its PC adapter cable. It was selling essentially the same product twice so the move to selling a single Kinect unit adapter cable should keep things simple.
The Kinect for Windows was so popular with desktop developers that in some markets there were supply issues. That should not be the case with moving to a single product and having the adapter cable available. Developers and owners of Kinect units should not worry though as support will still be around for the unit. With all the simplifying and consolidating that Microsoft has done recently this move makes a lot of sense and it is likely that more products will follow suit.