Retweeted christian querou (@christianquero1):
BlackBerry faces crucial test with U.S. launch of Z10 | @scoopit http://t.co/F9hPAScRBd
BlackBerry faces crucial test with U.S. launch of Z10 | Christian Querou
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TORONTO (Reuters) - Nearly two months after its formal unveiling, BlackBerry's new Z10 smartphone finally went on sale in the hyper-competitive U.S.