Using the Microsoft Office Live Code Sample: Contact Map code, I created a live demo for you…

http://www.wssdemo.com/demo

This sample code creates a map displaying the location of all of your contacts included in the Contacts list in the Business Contact Manager application when you have either an Office Live Essentials or Premium subscription my WSDemo.com SharePoint site. This mashup leverages the Microsoft Virtual Earth APIs and the Web services in Microsoft Windows SharePoint Services 3.0. It is a sample of one way that Web services can be used to create Web Parts that enhance Office Live business applications.

The sample includes a nice jscript library for using the SharePoint list web services.