Check out this example of Google's AJAX Search API + Maps in action at the Future of Web Apps conference site:

Enter your own search query (or click the Hotel titles) to see the integration in action; clicking the small green triangles to the right of the search box shows nearby restaurant and hotel listings.

A number of us from Google will be attending the conference this week in San Francisco -- including Tom Stocky from the AJAX Search API team, Jeff Veen from the UI team, Carl Sjogreen from the Calendar team, Eric Case from the Open Source team, Dan Peterson, Peter Deng and Paul MacDonald from the Developer team, Vivian Li from the Web Toolkit team, Othman Laraki from the Client team, Ryan Barrett and Andrew Bowers -- so be sure say Hi if you'll be there!