I did a webcast on using WCF from Silverlight 2.0 this morning - I think you can see the replay here in about 24-hours - http://msevents.microsoft.com/CUI/WebCastEventDetails.aspx?EventID=1032380766&EventCategory=5&culture=en-US&CountryCode=US If you watched (or watch the replay) here is the code: webcastcode.zip (3.46 MB) Check out my BizTalk R2 Training . Read More...