If you haven't seen Google Maps yet, go check it out. I'm sure you'll be impressed. Google continues to show us that thin clients and rich applications don't have to be mutually exclusive. What's amazing is that what Google's doing is just a drop in the bucket. Canyon Bridge Technologies has shown me things I would have never believed you could do in a browser. jgwebber has deconstructed what Google's doing with their maps. I like the rolling map idea. That's very creative.