Siri is the new iPhone’s built-in personal assistant. Siri can listen, interpret, and respond to user voices, making it a huge leap forward in voice recognition technology. One area where Siri’s capabilities could be extraordinarily useful is in education, and many are already theorizing about the myriad different ways that Siri could be used to change how we teach, learn, and view it.
http://www.onlinecollege.org/2011/11/27/20-ways-siri-may-forever-change-education/