Steve Jobs was famous for a lot of things, but one of his recent favorites was his proclamation that the PC era was over. While that one can be debated for some time to come, there can be little arguing that mobile devices are beaching more popular by the hour. The Infographic below takes a look at just how extremely popular such devices are, and it doesn't show any signs of slowing down soon. But one statistic I find hard to believe – more children have mobile phones than books in the home? Judge for yourself in the infographic below.