The other interesting spec for a message queue protocol is <a href="http://mqtt.org/" rel="nofollow">http://mqtt.org/</a><p>There is even a RabbitMQ plugin for bridging the two worlds: <a href="http://www.rabbitmq.com/blog/2012/09/12/mqtt-adapter/" rel="nofollow">http://www.rabbitmq.com/blog/2012/09/12/mqtt-adapter/</a>