That is a pretty awsome system.
I have to admit that it was frustrating to load all of the stuff and get it working, but WOW.
You sort of start from a view in outer space of the earth and then you zoom on in (depending upon the filter/source document you are using) until you can see your car parked in the driveway. At least I could see my car parked in the driveway.
As you said the topo stuff was also interesting to look at as well.
Thanks