Keel an eye on these guys; they'r in the new breed of ST/NXP chips for Iot.
https://www.sigfox.com/en/press/sigfox-s-ecosystem-delivers-world-s-first-ultra-low-cost-modules-to-fuel-internet-of-things
http://www.forbes.com/sites/moorinsights/2016/01/25/does-the-internet-of-things-really-need-dedicated-low-power-wans/#677ca49a2995
e
