You were missed!
As long as you and MJ don't vacation at the same time I think we can survive though.
I too will miss the Charms bar.
On my Windows 7 PC at work I am always reaching for them pointing my mouse to the top corner only to remember I'm not using Win 8.1...
damn I couldn't wait and got the I5, should have held out for the I7...
I actually prefer the left image on your Twitter example.
Kinect does not always recognize me right away forcing me to sign-on manually. This sounds like the proper solution.