There's more confirmation that Microsoft is readying Blue builds of Windows RT and Windows Server.



From All About Microsoft:

It shouldn't be too much of a surprise to anyone who has been following the Windows Blue rumors and news, but there's now more confirmation about Microsoft's plans to release both a Windows RT version and multiple server versions of Windows Blue.
winsupersiteblueleak

On March 24, what appeared to be a build of Windows Blue leaked to the Web. Some called this build a "partner" build of Windows Blue. One of my trusted sources has told me that the leaked build, number 9364, is real and is a direct internal engineering build, current as of the past week or so.

Stephen Chapman of MSFTKitchen did a teardown of the leaked bits.

  Microsoft readying multiple Windows Blue servers and a Blue Windows RT build