I also read this news from this cool blog that discuss all about the official and unofficial news about google. Apparently, the latest version of Google Earth has an easter egg: a flight simulator. It's not quite like Microsoft Flight Simulator, but it's a promising start.
How to see this feature. Make sure you have Google Earth 4.2. Open the application, click on the globe and then press Ctrl+Alt+A. You should see this dialog that lets you choose one of the two aircrafts (F16 "Viper" and SR22) and an airport.To know more click here...