above - I think you may be reading into it. WM7 may support gestures and shaking but that doesn't mean require it. Our current gen of Windows Mobile supports a touch screen and yet not all devices require a touch screen. Perhaps there will be different versions of WM7 just are there are of WM6.
I think much of what your finding results back to this repost of an article that has never been confirmed - that is why i couldn't say it was definite -
http://techinsider.info/wm7.aspx