Chicago is getting famous for a very different reason this season. Its O'Hare airport is getting geared up to accept cell phone boarding passes instead of the usual paper one. To use the feature, passengers must have an active e-mail address and an Internet-enabled mobile device to which their boarding pass and a 2-D barcode can be sent. The service will be available to passengers departing from Los Angeles International and John Wayne Orange County airports starting on Nov. 17.

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