[ajarmoniuk]

Just change the hotkey for the Unity panel - in the compiz plugin configuration, the Unity plugin.

[rbanffy]

But then I'd have to manage custom bindings for both Emacs and Unity. It was easier to avoid collisions in Emacs and let Unity use Super for whatever it wants (which is useful, BTW)

[ajarmoniuk]

I found that Unity doesn't like Super+R or whatever other combination you enter. It doesn't always seem to "catch" the combination.