Visitors attend a briefing at the world's largest mobile phone trade show in Barcelona, Spain, Thursday March 1, 2012. (AP Photo/Emilio Morenatti)

Associated Press
Visitors attend a briefing at the world's largest mobile phone trade show in Barcelona, Spain, Thursday March 1, 2012. (AP Photo/Emilio Morenatti)
Visitors attend a briefing at the world's largest mobile phone trade show in Barcelona, Spain, Thursday March 1, 2012. (AP Photo/Emilio Morenatti)
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