Not to totally derail this thread any more than it already has, but I think it is relevant if we are talking about using these smart devices to control our layouts.
Many phone applications make you sign their terms of agreement (that virtually no one reads). Often times, you are allowing the application to have access to your microphone and allow the app/company to gather voice data at any time. The Facebook app is one of them - like Jim mentioned above, it picks up keywords like "toolbox" and the next thing you know you are getting ads and emails about toolbox sales.
You can usually turn these "features" off, but you have to go out of your way to do it. They bank on people maintaining the default settings, either because the user doesn't know, doesn't care, or doesn't know how to manually shut these "features" off. I have totally disabled my microphone for anything except phone calls. Siri was never very helpful anyway 
The technology itself isn't inherently good or bad, it is just a tool. The tool can be used for really innovative purposes, but in the wrong hands it could certainly be used for nefarious purposes.
When applying new technology for any use, but also for our little railroads, we need to ask ourselves, "Is this really a change for the better or is it a change just for the sake of change?" You must also weigh what you are giving up as a result of the use of technology that uses so much personal data. There are smart thermostats (connected to wifi) that know your work schedule, when you typically leave, when you typically arrive, etc. so it can adjust the temperature to conserve energy. Noble purpose, cool technology, but wouldn't a burglar love to know that information as well?
Maybe, I'm just getting old - I am getting into my third decade now.
