With the small netbook screen, Expose can be an invaluable tool - however, Apple made changes to the behaviour of Expose in 10.6 that in many peoples' opinions completely destroyed its functionality.
Thanks to a smart Macrumors hacker, you can now revert back to the pre-10.6 Expose behaviour!!
Just thought people here might like to know that this hack has been discovered! I have applied it to my MacBook and haven't had any problems so far - Expose runs exactly as it did in 10.5. As soon as my 10v arrives and I Hackintosh it I will apply this hack as well.