Retail is the most fascinating industry when it comes to changes brought by mobile use and new channels. But Simon, the world's largest real estate company, still sees nearly three billion annual shopper visits. Patrick Flanagan, VP of Digital Marketing & Strategy, says that mobile actually works to the advantage of many brick and mortars. And he has lots to say to marketers about beacons (they are disappointing him), Amazon's impact, and what will make this year's holiday season different than any other.