http://www.isoma.net/games/goggles.html
I found it on DIGG. The game involves you controlling a plane flying over GOOGLE MAP (you can choose from 5 cities), which are London, New York, Paris, Tokyo, and Washington.
The left and right arrow keys control the plane's rotation in both directions, while the forward and backward keys control decreasing and increasing the flight altitude respectively (be careful, flying too low will cause a crash). The A and Z keys adjust the plane's speed, and the spacebar drops bombs (at first, I thought it was firing bullets, but when you keep pulling up the nose of the plane and increase your speed, you'll realize it's dropping bombs).
Flying through the GOOGLE MAP scenes is really fun, though there isn't much interactivity. However, with all the attention this game has received, it might get more features in the future—it’s definitely worth looking forward to!