Mark Zuckerberg's 2014 Mobile World Congress keynote

Mark Zuckerberg, Facebook's co-founder and chief executive during a Facebook press event in Menlo...

Mark Zuckerberg, Facebook's co-founder and chief executive during a Facebook press event in Menlo Park, California in this file photo taken April 4, 2013. REUTERS/Robert Galbraith/Files

, Last Updated: 12:06 PM ET

Join us for a live blog of Mark Zuckerberg's opening keynote address from the 2014 Mobile World Congress on February 24 at noon EST.


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