I think there is a big presumption here that Microsoft will continue to dominate the tablet/mobile/ARM world like they historically have the desktop/laptop worl

I think there is a big presumption here that Microsoft will continue to dominate the tablet/mobile/ARM world like they historically have the desktop/laptop world. I don't see any reason to believe they will. They are grasping at straws here. Frankly I can't wait for the rise of great UEFI Android tablets that lock out Windows OSes as "insecure". (Most Windows users won't know how to turn off secure boot. I hope Android doesn't actually permanently lock anything down.) Then watch Redmond accuse Google of anti-competitive behavior, going against the users wishes, and general mean-spirited-ness.