yes, the mouse, couched as the longtitude / latitude of the Earth - or perhaps the GPS (ie your mouse position maps to the earth's long / lat -- ie the old way of navigation)... because if we're tracking the UFO with our mouse, and it suddenly vanishes, we have an idea that something just happened over at X,Y coordinate. So when we go into our base to bring our aircraft out to patrol, then come back out to the world map, we have a good idea where to send them -- rather than go... doh... now where did it happen again...