Not only the actual inclusion of the camera itself, they would have marketed this way different, too. Instead of marketing the benefit of HUD form factor, they

Not only the actual inclusion of the camera itself, they would have marketed this way different, too. Instead of marketing the benefit of HUD form factor, they have mainly shown off the device as a photo taking device. I remember when it was first appeared at I/O, their marketing video was mostly, if not only, about taking photo and video. Edit: Fixed bad sentence break.