I don’t know if you have heard of Nest, but they make this “smart thermostat”. Nest was started by a former Apple exec named Tony Fadell, and the smart thermostat learns it’s user’s needs in order to optimize itself to consume less energy overall.
There is a rumor that Nest is now working on a smoke detector. If this is true, then it will have some serious sensors. I would imagine that it will be smart, to the point where it calls you if there is an alert.
So, Nest, why stop with the smoke alarm? Let’s make everything in the house smart? Maybe the AC, maybe the space heater? Shoot, this is all smartphone worthy.