This is a fairly dated video, but watch in amazement at one of the most promising technologies ever to emerge in this 21st century.
Technically, a multi-touch screen is an ingenious medium made by having a computer, infra-red equipped cameras, projector, and a modified projector screen. How the programming is made is beyond me, at least for now it is…
So far I’ve come across some ways to have this technology in your own home with minimal cost.
Home made screen:
Some imagination and ingenuity: