Blue Arrow plus = takes you to the "pause menu". In online multiplayer, you cannot pause the game since other players are playing. Your character simply stops moving while the rest of the world moves on and you CAN be killed while in the "pause" menu.

Quake 3 has TOP priority when running. You may have issues answering calls, less long getting to the desktop. I have managed to get to the desktop by sliding open the camera. Be warned, Quake 3 is tough in resource usage and will bring your N900 to a halt when trying to do anything else but play Quake 3. I have had to do many a battery pull trying to figure out how to get to the desktop or the phone becoming unresponsive after receiving a call (that I couldn't answer due to UI/Quake3 freezing).

The Maemo5 version is better than the Maemo6 version that is in the repositories. It has touchscreen mouse control and higher framerates on some stages..