Flight Checkin by Mobile

This is the kind of application I love. Lufthansa, the German airline are implementing a check in by SMS system.
Passengers will soon be able to have a complete check in service, including seat allocation and boarding card, through their phone.
The system uses a 2D barcode delivered to their handset which can be scanned to access the departure lounge or other areas.
Click here for more information on Mobile Ticketing.