The folks at WinSuperSite have discovered an Aero based feature of Windows 7 called Aero Shake which many of you Windows 7 beta users out there may not know about as it hasn't yet been talked about in the open by Microsoft, nor does it appear in the official Win7 beta reviewers guide.
The feature is called Aero Shake and it allows you to quickly minimize all other open windows in the background of your primary focused window (when not maximized) by simply clicking and holding onto the grabbable area of the window and shaking your hand left and right quickly. When you repeat the process, the other windows resort back to their original open position.
To better understand how it works, WinSuperSite has uploaded a short video of it that you can stream here. If you think the feature would be useful to you but don't want to move over to Windows 7 just yet, you'll be glad to know a free utility is is available which adds Aero Shake to Vista as well as XP.