Whatever the next big IOT thing is, I doubt it will be connecting your door lock to the Internet:
Update gone wrong leaves 500 smart locks inoperable
Seriously, what kind of naive, trusting fool would allow access to his home to be controllable over the Internet???
Thought that was dumb concept but only not if you have extra key locks on your door
People out there like doing and spends money on dumb stuffs only because theyre trendy and easy