Public payphones could have been refurbished as cellphone electric and credit chargers at least in the beginning. Now is far too late. You could still make something multitasking out of them especially in some remote places.
As for holographic interfaces as they are presented in the movies they are far too big they clutter all the visual area with augmented Reality stuff, they are heavy on your harms after a while instead of on your fingers, and they would probably spend too much energy aside off totally losing a sense of touch.
If they ever come they will be a geek gizmo that will never catch on.
As for "hyper-digital", we got that from monkeys way back.