Yeah this thing is really cool. I am just learning about what all you can do with it. I just found it on another discussion group that I go to everyonce in a while. It is really cool when the map gets filled up. I wonder if we can somehow pin this thing so that no matter when it falls off the front page eventually it will be readily available for anyone to see.
Also I just learned that it is not limited to the US, I merely set the US up as the default view. Anyone can enter their international city, and if you zoom out on the left side you will see the world view as well.
Enjoy!!