Finally a manifesto of REST principles :)
"a set of rules to apply if the goal is to come up with a Web app that is actually on the Web as opposed to be tunnelled through the Web. We tried to come up with a catchy name, and finally arrived at ”ROCA”, a conveniently pronouncable acronym for “Resource-oriented client architecture”.
So rather than a manifesto, they're trying to devise a nomenclature, along the lines of how Ajax gave a name to non-page refresh server communication with the browser.