[azakai]

Spot on. For most people, Microsoft products are what your boss tells you to use. Psychologically, there is just no appeal in buying them outside of work.

Microsoft was smart not to call XBOX "Windows Console" or such, but probably silly to call their mobile OS "Windows Phone".

[stock_toaster]

I wonder if they had called it "XPhoneOS" and targeted some type of gaming integration/compatibility with XBOX/XBLA if they would have had better luck.