The Nest x Yale lock is coming out after two years
https://www.theverge.com/circuitbreaker/2018/1/8/16850926/nest-x-yale-smart-lock-release-date-announced-ces-2018
Nest and Yale have been working together on a smart lock for a couple years now, but 2018 is the year it’s finally supposed to come out. Yale is announcing today that the Nest x Yale smart lock will be available for preorder starting next month and will begin to ship in March. Pricing info still hasn’t been announced.
The Nest x Yale is a particularly sleek looking lock since it completely does away with keys in favor of a touchpad and smartphone entry. It runs on batteries, and should they die, you can use another battery to jumpstart it from the outside so you can still get into your house.