Apple could hit as many as 280 million iOS devices by the end of 2012, depending on which metrics are called on for the projection, says Asymco's Horace Dediu. Just using market data predicting that smartphone and tablet sales will reach 6.2 billion within the next five years, Dediu remarks that an assumption of Apple growth from 17 percent in 2011 to 20 percent in 2016 would put the company at 225 million iOS units in 2012.
