Neat! It will take a while for it to be in many people's PC. Certainly many new things will be happening in the new One. Just like I don't know if they thought 1080P 5.1 streaming would be coming out of the Xbox 360 when it came out in 05.
I wish they would just give us all the X360 arcade and indie games. DirectX is usually very backwards compatible. Seems like it shouldn't be too challenging.