FYI: I'm using a 15" powerbook.
If I set the keybindings to left shift, left command etc, BOTH shift keys respond. I guess this means that these are not distinct keys on the powerbook.
Setting keybindings to something like command-F1 does not work either - just get the default behvaior for the key.
Finally, my settings are often lost. Personally, I find using the F-keys incredibly inconvenient for something that I'd like to use very frequently.
Anybody else noticing wierdness with keybindings in expose?