The only thing holding back innovation is the ability to integrate data from various sources into a single destination that processes that data agnostically.  The untapped and currently useless data around me is astonishing.  We could be measuring the workloads of LED's in TVs, vibration in Hard drives, the wattage of plugs, the efficiency of lights, on and on. 

The sensors can be made or integrated without much issue, the problem lies in getting that data to the correct processing application that then handles that data in a manner that produces meaningful insights.  We are on the cusp here of finding an agnostic methodology to handling data and at that point it will be a race to ease -of -use, visual beauty and price.