To top it off, Nest is also tying into Google's other big household technology acquisition, Dropcam. Its internet-savvy security cameras can now react to whatever your Nest equipment is doing. If your thermostat says you're away, Dropcam can turn on motion sensing. The smoke protector, meanwhile, can tell Dropcam to record a brief video to prove that there's a real fire. It'll be very expensive to try out any these improvements if you don't already have the necessary setup, but they promise to alleviate a lot of the headaches that come with managing a technology-rich household.