If only there was some device that you could literally touch and then the screen would react to what you do...
oh... wait...
That said, I didn't really get an impression of whether or not the screen was super thin or something like that from the video - just that a girl could see the "little town outside" after closing the virtual blinds. But a tech demo that doesn't do anything even remotely new is not super exciting in and of itself. That said, tell me I can get that screen for $600 and I'm exceedingly impressed.