http://en.wikipedia.org/wiki/Mobile_ticketing
http://www.youtube.com/watch?v=uB056DUGUQY
http://www.youtube.com/watch?v=pLkrYOvzkZ4&feature=related
http://www.youtube.com/watch?v=EEKcN0UbQAE&feature=related
http://www.youtube.com/watch?v=a0XQbIBjVVQ&feature=related
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