FILE - In this Feb. 27, 2013 file photo, a man uses the "Paypal here" system of payment with the phone at the Mobile World Congress, the world's largest mobile phone trade show, in Barcelona, Spain. (AP Photo/Manu Fernandez, File)

Associated Press
FILE - In this Feb. 27, 2013 file photo, a man uses the "Paypal here" system of payment with the phone at the Mobile World Congress, the world's largest mobile phone trade show, in Barcelona, Spain. (AP Photo/Manu Fernandez, File)
FILE - In this Feb. 27, 2013 file photo, a man uses the "Paypal here" system of payment with the phone at the Mobile World Congress, the world's largest mobile phone trade show, in Barcelona, Spain. (AP Photo/Manu Fernandez, File)
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