The intelligent little device does more than that, in fact, letting you remotely grant access to your abode - to AirBnB guests or the cleaner, for instance - and the lock will also work as part of wider automated systems.
For example, if the door is locked, it'll set Nest to 'away' mode and turn the Philips Hue lights off. If that's not basically The Jetsons made flesh, we don't know what is.
The lock can be opened using the Yale Alarm and CCTV app, pin number and touchpad, or key fob.