I'm at SXSW and experiencing interesting opposing stereotypes, which are not necessarily good or bad.
I was just in the Augmented Reality meetup room, which is lively and social and moving - hot with many interesting conversations. The organizer stood on a chair to say hi, thanks for coming, who's new, who needs a developer, who wants to talk about what - great, go! The folks are business folks, developers, dreamers. It's loud and fun.