One of the perceived differences between the mobile market and console is the flow of consumers in and out of different ecosystems.While users are effectively tied to the console they purchase for 4 or 5 years, the nature of mobile contracts means consumers tend to switch handsets every 12, 18 or 24 months, creating an opportunity for one OS to eat into the share of another.Not where iOS is concerned, however. According to a report by Deutsche Bank analyst Chris Whitmore, each iOS user spends an average of $100 on content....