Doesn't excite me. Scares me actually. Guess it depends a bit on how this is implemented. Just hold it up and it charges whatever has been scanned at checkout, to me? How does it know it's me, a PIN that I have to enter? To what account does it charge to? Just one? Do I have to select? If there is some degree of security involved, not sure how this is much better than swipping a CC and entering a PIN. I found it fun to use my iPhone for the Starbucks purchase, once or twice. After that it was just as fast to get out my Starbucks card, and certainly easier at the drive through. Wasn't handing them my phone.
Just seems like a gimmick to me. Guess I wouldn't mind a CC like thing with NFC that could be programed with various accounts that would be related to where I'm buying stuff. I would still want at least a PIN to prevent easy use if it is lost/misplaced. I have proximity cards to access my office now, so I just have to hold the card up, but I still need a PIN to get in, just not to get out. So it is more convinient than swipping, but just a little.
Sometimes you are the anteater, sometimes you are the ant.