It didnt make its intended launch window of the 2013 holiday shopping season, but Amazons web TV set-top box is apparently still very much on the roadmap. Re/code reports word from multiple sources today that Amazon is aiming for a March rollout of its Apple TV and Roku competitor. Having invested in developing a rich and varied Prime Instant Video library, Amazon has done a good job of distributing that content across platforms, but there are obvious benefits to the web company controlling and selling its own hardware.