I’ve been playing with Beta 1 (build 7000) of the up and coming Windows 7 from Microsoft and discovered a new feature today that I haven’t seen documented on other sites or Microsoft docs either. If you grab a window and quickly “jiggle” it back and forth a couple times, all other windows behind it will instantly minimize. Let go and then “jiggle” the window again to make the other windows re-appear.

It seems pretty intentional and has worked every time I’ve tried it. Interesting new feature!