Check out the questions and Julian’s response to them here: http://julian-casablancas-for-decibel.takesquestions.com. This is really worth your time.
I want to say two things: 1) That takesquestions.com site is really cool. I thought this was a neat way to do an interview, especially with how flawed a company/interviewer taking Twitter questions can be. I feel like I really learned something from Julian’s responses.
2) This is going to sound abnormal, but I’ll say it anyway: Julian has a really nice speaking voice.