I consider it a good thing almost, there is no reason for there to be so many of these Pay systems springing up, it seems like every month there's a new service. Due to competition the bad ones and ones with bad security will die out and eventually there will only be a few survivors which are tried and true. Still, I wonder what's going to happen to the landscape when all of these huge promotions are completed, personally I don't know a single person among my group of friends (and many of them are pretty tech-savvy) who uses these QR code systems. I only use them if the shop has no other kind of credit card/traditional digital payment system available.