Google I/O developers conference

Updated: May 16, 2013 18:05 IST

Vic Gundotra, Google senior vice president of engineering, announces
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Vic Gundotra, Google senior vice president of engineering, announces "hangouts" for Google+ as he speaks during the opening keynote at the Google I/O developers conference at the Moscone Center in San Francisco, California. Justin Sullivan/Getty Images/AFP

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