The world of low power wide area networks (LPWANs) has started the year in turmoil. T-Mobile USA has become the latest in a very short line of operators to reveal national pricing schemes for these services, bringing a small dose of clarity to a very immature business model. Other operators are still focusing heavily on unlicensed spectrum options like LoRa, which is being expanded significantly by Proximus in Belgium. But another cheerleader for unlicensed LPWAN, Sigfox, has started 2018 with major cutbacks and question marks over its future. In the US, T-Mobile announced the country’s first Narrowband-IoT (NB-IoT) service plan for low power connected devices. Consumers can access the network – which is deployed on existing LTE infrastructure and spectrum…