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Paperless Boarding Takes off at United

CNN |  More air travelers may soon be scanning their smartphones instead of paper slips at airport gates.

United has become the latest airline to offer mobile boarding passes for customers equipped with Web-enabled mobile phones or devices, such as iPhones or BlackBerrys.

United passengers traveling within the United States, Puerto Rico or the U.S. Virgin Islands can now log on to mobile.united.com to check in for their flights via their smartphones.

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