First Windows 8 Update Halfway Done
 

I know, I know, these are rumors from "a couple sources" but, for the most part, ol' Mary Jo usually gets pretty reliable info. The Windows team at Microsoft just completed the first milestone build (M1) of Windows Blue, the first full-fledged update to Windows 8, according to a couple of sources of mine. One of my contacts said that M1 marks the halfway point in the Windows Blue development schedule. The last and final milestone build of Windows Blue will be M2, said this contact, who requested anonymity.

http://www.hardocp.com/news/2013/02/..._halfway_done/