Too much fragmenting in their line. Windows RT, Windows 8, now another Windows tablet that's just a game machine? Makes no sense.
agreed, this should run RT or be usable with Office at least.
Honestly, Microsoft has made great strides in simplifying their lineup, to the point where now they aren't all that much more fragmented than Apple.
Apple: iOS (with different feature sets per device), Mac OS
Microsoft: Windows RT (different features sets per device), Windows 8 (desktop versions)