This is what the IoT is all about. There are tonnes of other examples as well. How about the guy who invented a system that monitors power usage at his elderly mothers house from his web browser. He knows her routine enough to see power spikes when he should (like the kettle making tea at 10am every morning). If usage looks out of the ordinary he immediately checks up on her to make sure she is ok.
Lots of great stuff happening in maker space. People coming up with all kinds of ingenious way of using embedded devices, like monitoring humidity and temperature for specific applications, water levels...all sensor based. Raspberry Pi's, Arduino, Beaglebones..this to me is exciting and brings an aspect back to computing that is reminiscent of the early days and what got many of us into technology in the first place. It's too bad this is no longer the place to share that joy. But like and idiot I keep coming back here expecting/hoping it can change. But it doesn't, this place is dead. Time to logout for good.