Facebook's made no bones about the fact that its focus has shifted from a desktop web- to a mobile-focused company. Today, Director of Mobile Engineering, Mike Shaver informed us exactly how the company is making the change. It turns out, the company started an intensive training program last July in order to bring people up to speed on coding native apps for iOS and Android. How intensive? The program, run by Big Nerd Ranch, is five straight days of training for eight hours each day -- after which, those who make it through can "start writing code for apps the very next Monday." While roughly 80 percent of employees who take the training are engin