If you've done any work with WCF and non .NET clients, you've probably had the need to make WCF emit a flattened WSDL that doesn't use xsd includes. You've probably run across Tomas Restrepo's InlineXSDInWSDLBehavior and Christian Weyer's FlatWSDL extension. They both work quite well. Possibly too well.
Finally, the base functionality is working. I got tired of fighting and switched IIS 7 to classic mode.
Problems, are magically gone. Now it's on to moving old stuff over here and getting a decent looking theme working.