PIQT is a Java implementation of a peer-to-peer based distributed pub/sub broker. PIQT connects applications via topic-base pub/sub (Conforms MQTT 3.1 standard). PIQT is based on a distributed edge-broker model. It connects brokers via P2P structured overlays. PIQT is an abbreviation of "P2P Integrated Qualified/Quick TBPS" or maybe "PIax and mQTt" :). See http://piqt.org/ for more detail.