Right. Say I prop my iPhone up against my rolling pin and put on Orange is the New Black, though - is that not the same effect? I don't think people will pay boucoup bucks to project a picture-in-picture display over their face.
I'd want it if I could "pin" the the video to a physical space on demand, allowing me to move the video around a room and control its dimensions. Especially if it could stream the content of the videos from a beefy home pc. That would allow me to get rid of all the screens around my apartment with digital version while controlling all of them from the same source.