This would've been very useful as part of the animated tutorial on your first boot that you can't skip (and that I've seen 3 times this week thanks to setting up new machines).
That animated tutorial would be much better if it were interactive. I guess all that users take away after seeing it is “move the mouse into a corner and see what happens” – if they remember anything at all amidst the dozens “we're setting things up” screens (it's not that bad, I know).
Mmm, the animated tutorial is going to be aimed at the common denominator of users. I think MS is trying to hide things like "whether an app is running" from the average user. For example, I'm told apps will eventually close themselves if they aren't used.
This would've been very useful as part of the animated tutorial on your first boot that you can't skip (and that I've seen 3 times this week thanks to setting up new machines).