That's what I think is so cool about it -- half the issue with QR codes is that you have to open an app, point a camera at it, focus, and take a picture. With

That's what I think is so cool about it -- half the issue with QR codes is that you have to open an app, point a camera at it, focus, and take a picture. With this technology, you don't have to do any of those things. Nor do you have to get on the same wifi, figure out how to bluetooth pair, or anything else like that.