A New Frontier: OpenSignal Creates Crowdsourced Sensor Network

You have a smartphone, tablet and probably now, these days, a Fitbit or a smartwatch. Maybe you are an an early adopter or sports addict and have a sports shirt with sensors in it. All of these things, plus cameras, navigational devices, are full of sensors. All kinds of sensors and  lots of sensors  -- somewhere between 15-20 sensors on each smartphone today.