Microsoft's device chief sees a future without three versions of Windows

Microsoft currently ships Windows RT, Windows 8, and Windows Phone software on a variety of devices, but it’s heading towards a future where just a single version of Windows will exist. Speaking at the UBS Global Technology Conference last week, Microsoft’s head of devices, Julie Larson-Green, hinted strongly that the software giant is finally working to merge its core operating systems. "We have the Windows Phone OS. A single Windows world is where Microsoft is heading

via Tech News Headlines - Yahoo! News http://www.theverge.com/2013/11/25/5142850/julie-larson-green-future-windows-versions