Another very useful Berkman talk on Immersive Interfaces by Chris Dede, Timothy E Wirth professor of Learning Technologies at the Harvard Graduate School of Education.  Dede develops a typology of immersive interfaces and illustrates their application in US middle schools. Even more usefully he presents a simple analytical framework for discussing immersive environments for learning: is it an environment or is it an interface? And, as frosting on the cake he gives sound cultural and pedagogical arguments for the use of immersive technologies in education.