Oh crap, I had no idea he'd died - I met him once when he was on his happiness tour, really interesting, genuinely nice, and driven guy. He took the idea of selling shoes and somehow morphed it into spreading happiness including touring it to markets that Zapos didn't operate in (like NZ where I met him), which obviously had limited direct benefit to his company. Only really visionary people would be able to pull off something like that and connect those dots.
I also met someone who grew up with him, he said that Tony was always looking at everything with an entrepreneurial eye. Anything and everything would be a business, even bringing in a grill to sell burgers to his class mates at lunch.
Big loss of a visionary.