Imagine the possibilities when ARKit applications like this can be used in social settings and multiple people can all see the same things.
Imagine Steph Curry shooting a fireball when he's about to break a three-point shooting record.
Imagine going to a festival and seeing floating identifiers in the crowd to help you find your friends.
Imagine dating apps where you can go to a public place and broadcast your single-and-looking status, but only to people who match your criteria.
iOS 11's ugly Control Center totally grew on me. I love being able to customize the buttons and no longer having to swipe between Control Center and Now Playing.