We already knew that Microsoft is replacing service packs with more rapidly delivered updates for Windows, starting with 'Windows Blue'. The update would be rolled out sometime later this year. Now we can see the first official mention of Windows Blue in a job posting on Microsoft's careers site, which gives us a hint that Windows Blue will focus on user interface, Start Screen improvements, application lifecycle, windowing and personalization, and how users interact with their computers rather than under-the-hood changes.
We’re looking for an excellent, experienced SDET to join the Core Experience team in Windows Sustained Engineering (WinSE). The Core Experience features are the centerpiece of the new Windows UI, representing most of what customers touch and see in the OS, including: the start screen; application lifecycle; windowing; and personalization. Windows Blue promises to build and improve upon these aspects of the OS, enhancing ease of use and the overall user experience on devices and PCs worldwide.
For those who don't know, Blue is the codename for the next update wave of Windows-related operating system and services. There will be a 'Blue' update to Windows 8, Windows Server 2012, Windows Phone 8 and all the Windows Services like Hotmail and SkyDrive.
Update: Good news for Windows Phone users -- a Twiter user found a Microsoft job reference to Windows Phone Blue too. Here's his screen shot.
Source: Mary Jo Foley