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:
Check out my BizTalk
R2 Training.