Besides the much advertised new sky maps feature, Google Earth’s latest version 4.2 has a hidden Flight simulator. Awesome graphics and good control of flight� but not with a keyboard, at least not for me. Still it is worth a try. Download the latest version and enjoy. More details about this feature can be found at Marco’s blog� while keyboard shortcuts for controlling or crashing your aircraft are here.
Google has always been famous for hidden features in its services and forever beta versions (Gmail is still in beta!). This is another example.