Hadley Pettigrew from New Zealand has built a simple yet powerful mapping component for CRM 2011 that integrates with the “Advanced Find” dialog. This allows you to take the results from Advanced Find and plot them in Bing Maps with a click of a button. Checkout the tool at https://crmmapping.codeplex.com/
Hadley has also been blogging the details on how he built it at his new blog here: https://crm-dev.blogspot.com/2011_04_01_archive.html. He has built a number of cool CRM stuff for us recently so be sure to subscribe to the blog.