Exposé
Navigate through Exposé using the keyboard
05/08/2011
In Exposé, press the arrow keys to select a window thumbnail, then press the spacebar to enlarge the thumbnail or press Return to switch to it.
Switch between applications from within Exposé
09/25/2010
When using Exposé to view thumbnails of all windows, press the Tab key to quickly switch between each open application.
Arrange thumbnail windows in Exposé
03/19/2010
In Snow Leopard, when using Exposé to show thumbnails of all windows, press Command-1 to arrange them by name or Command-2, by application.
Use Exposé inside of Spaces
01/23/2010
When viewing all of your Spaces, you can use Exposé to show every window within each space by hitting Fn-F9 on your keyboard.
