QR codes aren't just for URLs, there is a large array of common formats, but really it is up to the device reading it, and how it processes it.<p>To me, QR codes are fine, and actually have a lot of good uses, what is the problem is camera software parsing them.<p>I use a program called binary eye on android, it decodes the whole QR code and displays its value before attempting to do anything. I was this was the standard action.