Microsoft, when are you going to enable this on Windows?

The Handoff feature on Yosemite is awesome, just check out the video below.

http://bgr.com/2014/06/05/ios-8-features-handoff-yosemite/

Now, putting things in context, MS can potentially do something even cooler with the integration of Windows 8 and Windows Phone, the question now is, how long its going to take.