I was thinking that iPhones in pockets would suffice as more than one tag, especially in public spaces with plenty of people. With that, the floor plan or walka

I was thinking that iPhones in pockets would suffice as more than one tag, especially in public spaces with plenty of people. With that, the floor plan or walkable space could be mapped out programatically. I agree it doesn't seem to be a plus for privacy, but I hope, and expect that is a consideration. I was recalling the approach taken to find-my: https://www.wired.com/story/apple-find-my-cryptography-bluetooth/ https://www.wired.com/story/apple-find-my-cryptography-bluet... which seems to protect a users individual location while leveraging location of devices in the environment. I am just speculating here, but I think this is part of a larger play to map out indoor space which could bring amazing new features to maps, "find my", and AR applications.