Sci-fi gripe: holograms for personal devices

What do cell phones look like in the year 2144?

Obviously they won't have a screen anymore. They'll be pop-up displays. So if you're sitting on a train and your romantic partner sends you a steamy selfie...guess who has an audience?

Has this annoyed anyone else?

If they're tactical screens, that makes sense. But I still don't think transparent displays on personal devices will be a thing in the future.