How do you bind "switch to app X" to a hotkey? I'm in Keyboard Shortcuts, and I while I can see how to define shortcuts for app menu items and such, I don't see how to specify switching.

I agree with you on the context-switching issue in spaces- it seems counter-productive to have to switch to a separate space for email, terminal, whatever. I like being able to have all my apps in the same space (albeit on two physical displays), and Expose and Cmd-tab seem less disruptive to my workflow than Spaces.