Intel talked about this almost 2 years ago. Long time coming. I have seen a couple of HCI vendors talk about it also. I think I saw a Maxta presentation about 6 months ago in which they also talked about 3D-XPoint because of some hook up with Intel. Others can't be far behind.
The ability to have this in sever in a 1U server or even higher density will allow people save a ton on power and cooling.