Google's Android will be the second-largest smartphone platform in as little as three years, according to Gartner analyst Ken Dulaney estimated on Wednesday. While it trails today, the mobile OS is predicted to climb to 14.5 percent of the market, or about 76 million phones sold per year, by the end of 2012. As a consequence, it would whittle Symbian's market share down to 39 percent (203 million phones) and just slightly overtake the iPhone, which in this view would have 13.7 percent of the market or 71.5 million devices.