Comment 3 for bug 871277

Different outcome on desktop-pc.
Setup: unity with cube-plugin, focus follows mouse and conky.
compiz 1:0.9.6+bzr20110929-0ubuntu6

Open a terminal window.
Switch to different workspace.
Open gedit.
Close gedit via window button or alt+f4.
Switch workspace back to terminal with ctrl+alt+arrow left (or wherever terminal window resides).
Result: nothing happens, global menu still displays 'gedit' as focused, although it's closed.
Workaround: switch workspaces with mouse wheel. (left click on desktop doesn't help in this scenario.)

Switching workspaces is possible when firefox was in full screen mode, closing it allows to switch workspace via shortcut.
After closing gedit in full screen mode it doesn't allow to switch workspace via shortcut.

Another test-case:
Open a terminal and gedit on the same workspace.
Gedit has focus on top of terminal.
Close gedit, leaving terminal window open allows to switch workspace via shortcut.

Sum.
After closing a window leaving only the desktop it isn't possible to switch workspaces via shortcut.
Except after closing firefox in full screen mode.
After closing one window, leaving another open it's possible to switch workspaces via shortcut.