The present invention provides a system and methods for a radio frequency identification (RFID) system which securely and conveniently integrates important travel-related applications. In accordance with one aspect of the present invention, an RFID system comprises a transponder identification application...http://www.google.co.uk/patents/US7768379?utm_source=gb-gplus-sharePatent US7768379 - Method and system for a travel-related multi-function fob
