Facebook's Zuckerberg both woos and lashes out at phone industry

By Eric Auchard BARCELONA (Reuters) - Facebook Chief Executive Mark Zuckerberg on Monday tried to extend an olive branch to mobile phone companies, on which the popular social network company increasingly relies, but which are also among his biggest critics. Speaking for the third straight year to an annual gathering of telecoms executives at the Mobile World Congress here, Zuckerberg sought to show his company could be a valuable, if truculent, ally to the wireless industry. Zuckerberg challeng