I'm a Pakistani ex-muslim atheist currently living in NY. I am very keen to attend this event to see all these great rational minds. It would be a dream come true for a person like me who actually left Islam to most part after reading Sam Harris and Ayaan al Hirsi. I called Australian embassy here in NY and they have told me that I'd need an invitation letter from the organizers in order to obtain a short term visa to attend this event. Does anybody here knows who exactly should I contact for this invitation letter thing.