Very cool:
Google Earth Flight Simulator
(Marco's Blog)
Some time last week, Google expanded Google Earth with Google Sky. As fascinating as Google Sky is, that's not the focus of this post. Along with the latest update comes a hidden feature of which I cannot seem to find any other information about. It's not in the release notes and a search on Google produces no results. Seems Google have done one of their unpublicised updates they're becoming well-known for.(via Techmeme)
What I'm talking about is a flight simulator embedded within GE. Sounds awesome, doesn't it? If the thought amazes you as much as it did me, then might have run off and tried it for yourself. But there's a problem. Remember what I said above - it's a hidden feature!
First of all you'll have to install the latest version of GE. Once you've started it all up, explored Google Sky a bit, then all you have to do is hit Ctrl+Alt+A (if you're running OS X it's Command+Option+A).