Five years ago this week… Plume announced at Broadband World Forum in Berlin that it was open sourcing some key elements of its WiFi architecture, which had previously allowed it to conquer Comcast, Liberty Global and Bell Canada in WiFi cloud management. One takeout from a rodeo bull-type conversation with Plume CEO Fahri Diner, was the revelation that Plume was installed on all Virgin Media home gateways. Overall, Faultline assessed that the open sourcing move was an attempt to make operators believe they were getting something for free, when they were actually acquiring hooks into a set of Plume cloud apps. This was the start of OpenSync. Major movement in the codec patent landscape sees Avanci launch a multi-codec patent pool…