> ... already in homes: they range from network addressable lightbulbs to the bleeding-edge biosensors and medical equipment
If I might be so bold. NONE of these things appear in "homes". There might be one or two examples of one or two things that appear in one or two technology-sampler buildings in a few of the world's most advanced counties. But thats all. And that's all it will ever be,
Most people neither want nor care about making their houses intelligent. Most people just want some basic stuff that does what it's told to: when you press the button to tell it. No options, arguments, further questions or "This app has crashed and set you house on fire. OK" dialogs. Just simple, no-questions-asked obedience.
So let's leave off about the Internet of Things. Maybe one day in the distant future there will be some small uptake of already built-in devices in new homes. One thing we learned from trying to manage the vast array of telco nodes and devices is that it's very, very hard and is a massive block to the adoption of standards. So the chances of the "average user" being able to use or configure some IoT devices is about as likely as them learning and using ASN.1 and BER.
Stop reading the hype and forget it all. A fish tank with some sensors and maybe an internet connection doesn't cut it - and is a poor substitute for having a reliable system (that doesn't need remote monitoring) in the first place.