How Zuckerberg learned from bad decisions (or did he)

Mark Zuckerberg made a very bad decision in 2010: He focused Facebook's engineers on (..) an app version of Facebook that (...) would go away. (It) didn't. The buggy and slow Facebook app soon became "one of the biggest mistakes we've ever made," Zuckerberg said in a Fortune magazine cover story (...)

http://www.rappler.com/thewrap/april-30,-2013-edition/facebook-home-mark-zuckerberg

Which quote from this article:

http://money.cnn.com/2013/04/11/technology/facebook-zuckerberg-home.pr.fortune/index.html