Ryan Reith, Program Director with IDC's Worldwide Quarterly Mobile Phone Tracker, said that the falling price of smartphone hardware is the most significant factor driving this growth, as well as broader availability of devices with larger screens. "Of the two [factors], I have to say that low cost is the key difference maker," Reith explained. "Cheap devices are not the attractive segment that normally grabs headlines, but IDC data shows this is the portion of the market that is driving volume."
He added: "Markets like China and India are quickly moving toward a point where sub-$150 smartphones are the majority of shipments, bringing a solid computing experience to the hands of many."
Source: Neowin