Kinect now not required to use the XBox One.
I'd not be surprised that, after the pre-Orders ship, we start to see Ones shipping without the Kinect hitting the shelves.
Next thing I'd like to see? You know how they're using pass-through HDMI tech for TV recording? Why not have the same thing, but between the XBox One and the 360? Fire up your One, select the 360 App, now you can play your 360 games through the One.