Comment 1 for bug 617356

I also think it could be an interesting addition:
Super+f -> files place
Super+a -> apps place
Super+w -> workspace switcher

(btw, all of them are at the left side of the keyboard (spanish version, at least)... then easy to use shortcuts!)

The idea of having a "contacts dash" (https://lists.launchpad.net/ayatana/msg03509.html) could also be improved with the shortcut Super+c