Google bought Nest for $3.2 billion almost a year ago, and we're now finally starting to see some Google/Nest integration. Droid Life spotted that the device's long-promised Google Now integration is finally live.

The integration is detailed on workswithnest.google.com, where Nest users can opt in to the two features. The first new trick is pretty simple: you can control the temperature with your voice. Just say "OK Google, change the temperature to 70 degrees" and the Nest will do it.

The second is a little more advanced. Nest has always been able to detect when you're away, but now Google Now will detect when you're headed home. This allows a user to fire up an HVAC system so that everything is a comfortable temperature when arriving. Nest can use its data to estimate how long an HVAC system will take to heat or cool a house and Google Now can estimate your arrival time, so presumably the two systems take all the ETAs into account and plan accordingly.

Nest integration starts today in the Android and iOS Google app. Users should also see a Nest Google Now card letting them know that all this technical wizardry is happening. But if, after opting in, these updates don't immediately work for you, give it a day or two. Like all Google things, it's likely on a staggered rollout schedule.