(1) I'm somewhat confused about the "already registered" response. As far as I can tell, it indicates that the requested username is already taken, so the client should prompt the user to enter a different username. (The JPG says "If the user is already registered with this service..." when I think what it really means is "If the chosen username is already registered by another user...")
Well, this doesn't appear to be true, at least for registering for a JID. Now that I have my code running, jabber.org actually returns me an error 409 "username not available" in this situation, which does make more sense.
So what does <registered> mean? Does it come into use only when registering with a transport?
�Jens
