In all my years of smart phone (and now ipad) ownership, I have never scanned a QR code.
Nor have a ever felt a desire to do so.
Am I missing out on something? People put them everywhere these days. On business cards, ads, cereal boxes. The hotel in which I am staying right now has posters in the elevators that have QR codes that supposedly let you book a room.
Kinda strange putting that in an area mostly used by guests who already have rooms, but since the hotel already lied about having a swimming pool, having Tamil pop Friday nights in the bar and having live rock Saturday nights in the bar, maybe the QR posters are just another in a litany of mis-truths.
Back on point, is there anything truly useful about these QR codes?