My guess is this goes back to Microsoft internal battles. Both the Windows client & Office groups were getting their turf encroached on here. The less powerful

My guess is this goes back to Microsoft internal battles. Both the Windows client & Office groups were getting their turf encroached on here. The less powerful Windows Mobile & Zune groups probably had no love for it either. In ~5 years we'l probably see a lot of these ideas implemented by the big players inside of Microsoft.