I tried out Google Earth today. Overall, I’m not that impressed. Its probably because I tried out Keyhole about 3 years ago after seeing it at an Nvidia shareholder meeting. The app today vs. then is not that different. For people seeing this for the first time, I’m sure they will feel impressed, but after about 10 minutes, it loses it’s luster. You really want the data set to be truly 3d. I want to see the buildings in true 3d when you go down to the street level.
Anyways, this is just my ‘humble opinion’