On a phone, the state is in your head. Forms becoming more conversation. Semantic instant mesaging with conversation. Remote operations with XML protocols. Look at documents as fratic of conversations.
Message is a little different, has a to pointer and a from pointer and a namespace pointer.
Protocol is two documents with the same protocol namespace. HTTP forgot requirement about social request that an HTTP request is an assertion and has real-life meaning. We get hung up on strcutrure and forget what things mean. Means you can uncouple things. WG don't need to be independent.