New to VS 2010 and Framework 4.0 is a new protocol: WTF
WTF stands for Web Transport Feature and is a means of publishing and consuming REST-style data to the cloud.
I experimented with it today. I coded a simple WCF service with an OperationContract and pressed F5. Visual Studio then crashed and restarted. WTF?! Yes, it was WTF. WTF is synchronous - if a transaction is interrupted the entire operation is cancelled. WTF!
Yes, I exclaimed WTF! a lot today.
(Surely you didn't take this seriously?)