GE Flight Simulator (0.4)
GE Flight Simulator is a very realistic flight simulation game that uses the Google Earth plugin.
Using the simulation you can fly anywhere in the world. The simulation uses Google Maps to display and help you navigate to over 30,000 airports around the world. To view the map in flight just click the "show map" button in the option bar.
If you click on any of the displayed airports you can choose to fly from or fly to the selected airport. In "Aeronautical" mode, the map also shows a layer of airspace areas. This overlay has been generated using DAFIF data.
You can also view the map of the 30,000 airports on its own here.