Any idea how long it will take for the xbox one controller to come out for the pc?

I was looking into getting a controller for my pc, but seeing this video made me want to wait a bit for this controller if it really is that much better:

http://www.youtube.com/watch?v=m4SYaTLCWL0

I saw reports that it won't be compatible with the pc until 2014, but will it really take that long? and if so, when in 2014?

I don't intend to get the x1, but that controller seems like a winner to me in its own right (if there are better options out there now let me know).