Microsoft job post gives more info about 'Windows Blue'
Found on CNet News on Saturday, 16 February 2013
On the Windows and Windows Phone fronts, Blue is expected to include new features and even new programming interfaces designed to bring the different flavors of Windows closer together, from an app model/development model perspective. That said, it's not just Windows internals that will be updated with Blue. As the job posting above verifies, user interface and experience updates will be part of Blue, too.
Oh joy, an "even better" interface. Microsoft already ruined that with Windows 7 and 8; reaching a level where it's no fun at all to use the system on a daily basis.