Android will have password-free sign-ins by the end of 2016
 

Back in 2015, Google teased the prospect of Project Abacus, a sign-in approach for Android that ditches passwords in favor of a trust system that uses patterns (such as location, typing speed and voice) to verify your identity. But when is it coming...

http://www.engadget.com/2016/05/23/a...s-due-in-2016/