Interoperability has been a primary goal of the web services standards from the beginning. After all, why would you go to the trouble to form a cross-industry initiative to essentially re-invent advanced distributed programming protocols like CORBA and DCOM, unless you could create standards that were broadly supported and truly interoperable? Interoperability is also fundamental to the whole promise of service-orientation. From it's inception, WCF was created to enable this interoperable, service...