Ikea has joined the board of the Zigbee Alliance, and with its retail clout and growing smart home portfolio, the titan of home décor might just be able to whip the industry into shape – bludgeoning the crowd into submission on the back of the smart home’s sunk cost fallacy. However, we’re pretty sure we’ve written this story before, and that is quite telling. It has always seemed obvious that there should be some sort of unification layer, which would let all manner of IoT devices interact with each other. For a time, it looked like this would be the AllSeen Alliance’s AllJoyn, or the OIC’s IoTivity. Those two groups then merged, and are now the OCF, but IoTivity still…