As Jan mentioned in an earlier comment, it's not just the task bar item. It also switches the mouse to a busy indicator.
-- [Edgy + Feisty] "Starting administrative application" is still present after application's window appears https://launchpad.net/bugs/66518 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
