The iPhone 3G successfully led Apple to more than double its share of the smartphone market before the start of 2009, according to late data from href="http://www.gartner.com">Gartner. Apple jumped from just 5.2 percent of all smartphones in fall 2007 to 10.7 percent just a year later with 4.1 million iPhones sold. The gain came mostly at Nokia's expense, as the company dropped from 50.9 percent