Hi, I am from Barcelona, and I was there. Stallman is a great man. I dont know what happened at the end, but when we were in the talk the organizers told us that the talk is suspended because Stallman was not well. The medical service arrive 20 minutes after Stallman ask for attention. This delay was used by him to say: "Son los recortes, Rajoy nos quiere matar a todos", meaning: The delay is because of the cuts in the spanish health systems, Rajoy (the president) want to kill us". :-).