Microsoft Facebook Developer Toolkit

Shortly after this project began, it was brought to my attention that Microsoft has teamed up with Facebook, and they've come up with a C# and VB.NET Toolkit for the Facebook API. The current version is very feature-rich and released as open source. It is still being maintained and can be found here:

http://www.codeplex.com/FacebookToolkit

For anyone that was watching this project, I recommend you try this Toolkit instead. I will also be participating in it's development.