Few would doubt that 2012 was Android's year given how rapidly it grew, but it's good to have some context. IDC is more than willing to oblige. It estimates that Google's OS climbed from 49.2 percent of the smartphone space in 2011 to 68.8 percent in 2012. As we've seen in the past, though, most of that came from customers leaving embattled platforms, including a pre-BB10 BlackBerry and Symbian. Apple reportedly held its ground at 18.8 percent, while Microsoft appears to have turned a corner with Windows Phone