The logout button is there because of Fitts' law. The screen corners are easiest to hit because they have infinite height and depth (you can't go off the screen). Having something else take over the actual corner destroys the whole point of having the button there.
-- Compiz's default top-right hotspot is extremely annoying! https://launchpad.net/bugs/91779 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
