Great architectural overview of RIA with Silverlight 2.0
If you want to get a nice comprehensive overview of Silverlight 2.0 Architecture Development and Deployment then check out this 4 part series from my colleague Bob Familiar. There's some great information here that covers a broad spectrum of integration with Silverlight - everything from WCF to DeepZoom. I'm sure you'll find something interesting and useful here, including source code and more. Read about it starting at http://blogs.msdn.com/bobfamiliar/archive/2008/04/04/rich-internet-applications-using-silverlight-2-0.aspx