Yes Apple, all those animations in Lion are awesome but do they have to take so long ? If You prefer the Mission Control (btw, Expose was way better) to ‘animate’ faster:
Enable faster animation
user@computer:$ defaults write com.apple.dock expose-animation-duration -int 0; killall Dock
Disable faster animation
user@computer:$ defaults write com.apple.dock expose-animation-duration -float 0.3; killall Dock
-float 0.3 controls animation speed, put -int 1 here and it’ll be painfully slow.