Date Added: Nov 2010
In this paper, the authors explore new ways in which Near Field Communication (NFC) can be used on smart phones. NFC allows for Contextual Application Invocation (CAI) - the execution of code on the phone as a result of their environment. They can launch applications because of contextual information they learn from another transaction on the phone, or they can associate context with a virtual token to recall at a later time. They can also pass context from one phone to another so the devices can interact in a multi-party session. This paper presents a number of compelling applications using CAI and addresses the associated security and usability concerns.