Cross Device Session Stiching - Google Analytics Introducing Ability to Track People Across Devices

In the course of a single day, most people interact with the internet through multiple devices. They might use a laptop at home, their smartphone on the go, and then a desktop at work. If the same person visits a website from each of these devices, it is seen as three separate visits.
But not for long. At the recent Google Analytics Summit, they discussed a plan for "cross device session stitching." Put simply: they will begin tracking a single user across multiple devices.