A method, system, server architecture and/or tangible medium determines and/or transmits and/or establishes communication with a mobile device user. The method includes, for example, receiving a communication from and/or transmitting a communication to, an event customer, and optionally updating a database...http://www.google.de/patents/US7577620?utm_source=gb-gplus-sharePatent US7577620 - System and method for reallocating and/or upgrading and/or selling tickets, other event admittance means, goods and/or services
