Not just any message queue protocol, Panic From Fuzzy points to a new *Advanced* Message Queue Protocol. The spec seems incomplete at a glance (e.g. multiple mentions of several kinds of "transactions" but I could not tell that they were fully specified).
RedHat is currently working on an implementation that will be built into the operating system, making AMQ as free and available as SendMail, and accessible from any technology API such as JMS.I saw no mention of WS-* although AMQP appears to have the support of vendors with products in the WS-* market.
Also no mention of XMPP, or any significant mention of HTTP. Again from InfoQ the isolationist approach to the AMQP spec is acknowledged as work that...
has been done in secret.Mighty open of you, AMQP.