WF and WCF .NET Framework 4.0 Beta1 samples
When you download VS2010 and .NET Framework 4.0 Beta1, you do not automatically get the samples.
To get the SDK samples that the team put together, go to: https://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=5aca0622-d87d-4cc9-a22c-0d58205a56b4#tm