Apple’s Pro Tips: Expose Tip #2
Wednesday, January 5th, 2005
Exposé Show-off Trick #2 is a simple but fun trick:
Hold down the Shift key while hitting F9 or whatever you use to trigger Exposé. It will slow things down in a very interesting way.
You can also use the Shift key to slow down the minimization of windows (middle yellow button or double click the title bar if yo have that turned on). It’s f… u… n…

Uh, yeah, that has been there for over a year now :)
I just got it today in RSS… Are you sure?