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The folks at Aeritas have an interesting value proposition for you frequent flyers: Download your boarding pass into your PDA or mobile phone; walk up to the gate agent and pass the bar code under the scanner; then walk on board.
To do all of that, youve got to authenticate yourself to a system over the phone and somehow connect your mobile device to a computer to do the bar-code download.
At this point, wed settle for a ticket that actually got you to your destination on time.