Makes much more sense for what, exactly? There are a number of protocols that have been promoted for use in the Internet of Things arena, for example, includin

Makes much more sense for what, exactly? There are a number of protocols that have been promoted for use in the Internet of Things arena, for example, including MQTT and XMPP. All of them have different strengths and weaknesses. Cisco did a nice short overview of them with a minimalistic comparison: http://blogs.cisco.com/ioe/beyond-mqtt-a-cisco-view-on-iot-protocols/ http://blogs.cisco.com/ioe/beyond-mqtt-a-cisco-view-on-iot-p.... In the comments there, Peter Wahler goes into some more depth on the advantages that XMPP brings to the table. Among them are stronger support for authentication (SASL) and transport security (TLS and channel binding for some SASL mechanisms) and federation (including connecting firewalled entities). And, of course, an established base of libraries, server implementations and deployment. Other protocols have their own strengths in certain settings, and I can totally see hybrid solutions. For example, using MQTT for local use and XMPP for bridging networks.