After some research into a Service Reference problem I was having with Silverlight I came to find out (but not officially) that VS2008 DOES NOT use SvcUtil under the hood to get its service reference. It uses its own internal implementation of a proxy generation tool. I'll have to confirm this conclusion with some authority/book/etc, but if this is the case, I made a statement in Dime Cast 67 (WCF Rest Part 1) that informed viewers that VS2008 uses SVCUtil under the hood.

I'll see what I can find out and post it back here when I confirm my thoughts.