At this point, I can only wait for Beta. I really don't like the tech preview. I couldn't bring out taskbar in Metro if there is one. And I couldn't make Metro taskbar always on top if there is one. I am not the kind of user who auto-hide my taskbar on Win7. If Win7 taskbar cannot be always on top, I am likely to stay with XP in the similar situation. If there is no such option to have always visible taskbar in Metro, then, is it likely I will be forced to completely ignore Metro, or simply stay with Win7. I just hope Win7 can have update to support faster hardware cold boot, that EFI thing.
Also, let me swipe to the left. I mean, alt+shift+tab using swipe or mouse. Maybe it is there, but, I don't know how to do it.