The WirelessHART community has been collectively rubbing its hands with glee for the last couple of years at the prospect of being able to release the “stranded” capabilities of all those HART transmitters, reckoned to number some 20 million, which are installed across the world’s process plants in systems whose hosts currently have no HART capability. However, to Harry Sim, the former NASA shuttle payload director whom readers last met as global vice-president of marketing for Honeywell IPS, 20 million seems a relatively paltry number. He’s got his sights set on an order of magnitude larger population of process measurement devices whose only interaction with the outside world is currently via a technician’s clip board.