Dare Obasanjo: "Then there was the inevitable REST vs. SOAP discussion. Yahoo! picked REST for their APIs because of its simplicity and low barrier to entry for developers on any platform. Jeremy said that the tipping point for him was when he attended a previous O'Reilly conference and Jeff Barr from Amazon stated that 20% of their API traffic was from SOAP requests but they accounted for 80% of their support calls."
This is frustrating. If the industry does not learn to evolve the way it talks about Web services, the debate about REST vs. WS-* will never advance to a useful level. It's not REST vs. SOAP. It's REST vs. RPC-Style Web services that use SOAP. There is a big difference.