For those of you that are interested in MQTT for your IoT system, you might be interested by the project I am currently working on. I have published an MQTT convention for the IoT named Homie and an Arduino for ESP8266 framework for Homie, and I am about to release it as stable as it has been working for some of my devices for weeks, without any issues. Tell me what you guys / girls think about it. 🙂
MQTT convention : https://github.com/marvinroger/homie
ESP8266 framework : https://github.com/marvinroger/homie-esp8266
Web UI (WIP) : https://github.com/marvinroger/homie-server