Colleague Jamie Dixon just finished upgrading his MCPD to 3.5. In the process of that, he brought up the concept of using .NET streams over WCF. We went back and forth with how to do that, for both a Windows Forms client as well as an ASP.NET client.
I created a complete end-to-end VS2008 solution to show how to use MTOM vs Streaming – with both a Windows client and a web client. The source can be found here: