Core77 have just posted an interview and profile I wrote on Dan Saffer and hhis new book, Designing Gestural Interfaces. Dan talks about his vision for future devices and the way design agencies need to shift to a much more multi-disciplinary way of working if they are to survive.
I’ll just point you to “Talk to the Hand: Dan Saffer and Gestural Interfaces” on Core77 rather than spill more beans here.