This is a great article, Jon; I have to stop and think about these things all the time. How do you feel about the fact that in certain cases, when enough people use a word incorrectly for a long enough period of time, the incorrect usage becomes accepted as correct? I know diehards rail against this.
WCF includes a message framing protocol that is called .NET Message Framing for use with transports that do not natively support messaging. This framing protocol is used with the TCP transport to create NetTcp and with the MSMQ transport to create NetMsmq.
Services typically have a WSDL interface (Web Services Description Language) that any WCF client can use to consume the service, regardless of which platform the service is hosted on. WCF implements many advanced Web services (WS) standards such as WS-Addressing, WS-ReliableMessaging and WS-Security.