I am not sure how reliable this tech would actually be, but it is an interesting idea:
I was unable to find much more info on the company so I am not sure if this is just a funny idea / interesting thought or a serious business concept.
Either way it is food for thought, just a couple of days ago I was in the pub discussing super injunctions and recent indiscretions from a certain Mr Giggs! With that in mind imagine how useful this could be to the celebrity who likes a drink, all those amateur paparazzi with their phone cameras are suddenly no problem! – With privacy fears in social media in a lot of peoples heads this is an interesting idea for where it could end up…
It is also an interesting use for QR codes, a technology that seems to be struggling to find a place, in the west at least!