A cool flight simulator has recently been discovered in Google Earth. Oh C'mon you say? You can check it out yourself by pressing the following key combination: CTRL+ALT+A. The flight simulator features two planes to try, a F-16 jet and a SR22 prop plane. Although the simulator may not be as good in terms of flight physics or the other features you normal see in flight sims, Google's flight sim is good enough for me because it already features a primitive (and functional) HUD and you get to experience Google Earth better by skimming through the great looking scenery and landmarks.