What's new in Orcas release of WCF

Christian from Thinktecture prepared a list of new features and improvements that are part of the Orcas release of WCF. My favorite one is Custom username over transport security. The reason is that I've been trying to integrate WCF and PHP in a secure, standards based way and I've learnt that it's not easy because Custom username in WCF 1.0 forces you to use a mix of transport and message security (TransportWithMessageCredential). As we all know support of WS-* specifications in PHP world is far less than perfect and going directly to the transport security might make my life easier. I will write about my PHP/WCF/Java story later on.