This picture was allegedly taken at a Starbucks somewhere in Taiwan, though we don’t have any more information about where it was taken, who took the photo, or who was using the device.
Let me help you. A Google employee took the photo and the person using the device was also a Google employee. And you likely know this, considering you write a million of these fake "leak" stories every year which are just increasingly obvious marketing campaigns pushed by manufacturers in the lead up to a big product launch.
I remember a photo of the Nexus 5 being used in some Google publicity before it was announced, at least they didn't try to pretend it was a "leak" back then!