I think I might have mentioned before that von Neumann is a bit of a hero of mine. I transferred my affections from Feynman as soon as I was old enough to realize how much exaggeration must be involved in the “Surely you’re joking” stories. Sure, von Neumann may have made a mistake about hidden variable theories, but we are talking about a guy who gave us the first rigorous formulation of quantum theory, made major contributions to game theory and invented the modern computer architecture, so I’m willing to cut him some slack on that point.
Anyway, I thought I’d just mention the workshop at Princeton to mark 50 years since von Neumann’s death and 75 years since the publication of his book on quantum theory. Looks like there were many interesting talks.