The SIM card is the key to the cellcos’ kingdoms, enabling them to track and communicate with every device that comes onto their network ‘ and, of course, charge for the activity. As connectivity moves beyond handsets and tablets to ‘things’, there has been much discussion of an open SIM card which could be activated by the device maker, or could even be programmed on teh fly to link to any network in range, with no participation from the network operator. While it may prove impossible for a carrier to activate and manage every SIM card in every wearable and connected thing, so far the operators, and the regulators, have stuck behind the traditional SIM structures. But regulators in The…