Here are a few Mac OS X Exposé Clones for Windows Vista.
Switcher
Switcher is a new Expose clones for Windows Vista and is quite better than the previous one.
With this Exposé clone you can instantly access any open window with a single keystroke. Display all open windows as thumbnails, view windows of the current application or hide all windows to quickly locate a file on your desktop.
Requirements
Windows Vista
Aero enabled
Keyboard shortcuts
Windows+~ (the key above Tab): Activates Switcher. The key to activate Switcher is customizable.
Page up/page down/secondary mouse buttons: Changes window views, which define how application
windows are arranged on the screen.
Tab/shift+tab/arrow keys/mouse wheel/Windows+~/Windows+shift+~: Cycle between application windows.
Esc/enter: Selects the current application window and ends the session.
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My Exposé
With Mac OS X Exposé you can instantly access any open window with a single keystroke — and stunning style that can never be imitated. Display all open windows as thumbnails, view windows of the current application or hide all windows to quickly locate a file on your desktop.
Now there is finally a free Mac OSX Expose clone application for Windows Vista. To install this application, you’ll have to run the setup application as well as the Visual C++ redistributable package. Once you have it installed, you can just press the F9 key, and you’ll immediately be presented with a tiled view. If you move your mouse to the upper left hand corner of the screen, it will immediately tile all the windows. You can configure the hotspot or the hotkey with the tray icon.
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SmartFlip
SmartFlip is a replacement for the Flip3D function in Windows Vista. It places the windows on a circle (it’s actually a ellipsis combined with a parabola)
You can select to which window you want toflip by using the keyboard or the mouse. You can use as a trigger a keyboard key (you can even replace Flip3D, so that SmartFlip appears when you press Win+TAB) or a screen region (for example, the left corner).
Download
Enjoy!