Do you mean you could like, doodle around on a computer and get the output on the page the same as on the screen ancient one? Instead of using scissors and glue and paper cut outs? :)
Man, I kinda want to setup one of those giant touch screen tables and some sort of AR hybrid. Pretend I'm doing it the old way but with none of the downsides.
Sweeping scissors pantomime and minority report motions. Blank pieces of paper with different content projected unto them by... lasers, dependent on where on the table they happen to land.
Glue sticks that are actually remote control knobs.