I have to say, that was one of the best discussions on design I've ever heard. My background is in mech eng, and this talk brought me back to the excitement I used to have when talking about how to tackle a design problem. I can't wait to hear more from two fellow Canadians next week.
Regarding that muting the speakers while locked out feature: you've just made every student that ever popped open their laptop in the library with speakers blazing very, very happy. It was getting annoying fumbling around looking for headphones to try to muffle a yelling Kanye West
Thanks for the great work