FWIW, there's already a cheat sheet on the back cover of the booklet that came with Win 7. Has many of the hotkeys mentioned here (though I don't think all of them).
I really like the new taskbar now that I'm used to it. Glad I gave it another chance after realising my objections to it were based on how I *thought* I used the taskbar and not how I actually used it. (I thought I read the labels on the buttons and wouldn't be able to use a taskbar without them. Then I realised I didn't read them at all and just clicked buttons based on their icons until I found the right window.) There are a few things I wish the new taskbar did/didn't do, but can't have everything and I certainly wouldn't go back to the old one now.
I really like Aero Peek as well. Didn't seem like a big deal at first but being able to quickly focus on a single window, to see exactly what I'm about to activate and where, turns out to be really useful. Another thing I wouldn't want to be without now.
Of the new window management gestures, the one I like best is making apps go full-height by sizing them to the bottom of the screen. I don't use the side docking much but maybe that's more useful for people with only one monitor. Not sure if I drag-up-to-maximize or not. If I do I do it without thinking now. I do drag down to restore maximized windows so I guess that's nicer than the old double-click (else I'd still double-click).
I never use Aero Shake. Triggering it seems fiddly which makes using it hit & miss and frustrating. It's very rarely something I want to do anyway. (Again, that might be different with only one monitor.)
I still wonder why Flip 3D even exists and if anyoneuses it. 
Alt-Tab + Aero Peek is way better.
WindowsClient: You know your post rate has gone down...
Silverlight: Geek Profiles – Scott Guthrie
