Late post, the event was on 15th of June.
Had a good time, good pizza and great testers. The only thing planned was the Boundary Testing Exercise, which evolved into handling wide range testing problems. Good questions were asked, good bugs found. Specially the security issue of which I was unaware of. Thanks for pointing it out, let see if future testers find it as well.
It was great for me as well, I found several areas where to improve. You see? It goes both ways, we all learn (if we want to).
There will be another even in August or September. See you there.