From my experience, I see many more QR codes in the U.S. market than I do MS Tags. I think there are a lot of the big companies that don't care what it's going to cost that will get baited into MS's trap and when MS does finally spring the cage shut, the smaller companies already knee deep in a campaign are going to be pissed to find out MS wants to charge them a lot to see their analytics. While it's free, a lot of people and companies are giving it a go. But once MS announces it's pricing, we'll see the pendulum swing back toward standard QR.