Each seat has a QR code that leads users to check-in to the site on Facebook Places, and offers them the opportunity to win VIP tickets for a game at Yankee Stadium .
Think of the lowly bar code that makes the lines go faster at the check-out counters, raises the productivity of the check-out girls and boys, and relieves them of the need to do arithmetic.
If they don't have a frequent-flier ID card, travelers check in online or at kiosks and get a bar code on a printed boarding pass or on a mobile phone, just like at other airlines.