Faultline was only permitted (accidentally, it transpires) to attend a single session during this week’s 2021 RDK Leadership walled garden event, which just happened to be the well-rounded RDK roadmap that we craved – revealing previously unseen plans for the expansion of RDK video and broadband. Following four key themes – Lightning, RDK Accreditation, growth update and SoC partnerships – Comcast’s SVP of Device Software, Labeeb Ismail, revealed that the US giant is currently in the process of deploying RDK4 across all Flex devices, powered by the new Lightning-based UI that signals a move to a pure local software interface. We learned that there are actually four different UIs been trialed between Comcast and Sky right now, all deployed on…