Comment 7 for bug 863399

I think the solution could be this simple:

Unity could ship with the Compiz Application Switcher enabled but the keybindings for next window/prev window changed to Ctrl-Alt-Tab and Shift-Ctrl-Alt-Tab.

I think there is a strong case for doing this by default from a usability perspective, and doing so should help assuage the frustrations of the users who are sure to be put out by the Alt-Tab change.

(A minor note: Compiz currently doesn't allow moving from ctrl-alt-[arrow] to ctrl-alt-tab without releasing ctrl-alt first, but this could be fixed later).