I can imagine a world where billions of people have portable devices (cell phones or mobile computers) with Google Maps.
They’ll be able to choose from thousands of databases wherever they are, and can overlay them on top of Google Maps, providing them with incredibly interesting and useful information for planning travel, shopping, housing decisions, and more.
Two weeks ago in Price, Utah I demonstrated Google Maps and Satellite Images with Local Search (way cool!) and told the audience to image Froogle data on top of Google Maps: where is the nearest place that I can buy X? I’m sure that won’t be far off. And it will be on our mobile phones soon enough.
Here’s an interesting one: http://www.chicagocrime.org/map/
I hope to have my own Google Maps implementation overlaid with some history data soon. I’ve got a project spec’d out, I just need a developer who wants to implement a project using the Google Maps API. Anyone interested?