I fixed this by adding "state=fullscreen" to the "above" category in the Window Rules plugin. I am marking this bug as invalid because it is a design "feature" that gnome-panel is excepted from the rule that fullscreen windows are above all.
** Changed in: compiz (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/502309 Title: gnome panel appears over fullscreen windows when changing viewport -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs