It bothers me when there is a great sample application available, but no one can get to it unless they are a developer who downloads the source and compiles the application. Such is the case with a desktop application that is part of the Microsoft Facebook Developer Toolkit called Facebook Desktop Explorer. The application allows you to browse Facebook friends, photos and events. It also maps all Facebook friends to Microsoft Virtual Earth.
I've used ClickOnce to publish the application and make it simple for people to install from the web. Go check it out! Here are some screenshots to give you a sense of the application: