I and several other power users are willing to embrace any new ways of productivity Windows Ei8ht has to offer. All that isn't welcome is the $hitty crayon-mode UI in place of Aero; that is an exceptionally large step backwards.
Look at Windows Phone 7 for instance, where this crayon-mode has forever lived; how well do you see those top productivity smart phones selling compared to official uPhones that are all limited by crAppl. It's the UI that's the first selling point and if this is the best Microsoft can come up with (after Aero), it's just gonna be another Vista pie in their face