Reading this article +Jessica Hammer
linked about gamification makes me think about another theory of education and fun, which I might call "The Cat in the Hat" i.e. "It's fun to have fun but you have to know how."
Almost everything I've learned via, and for games has been so I can either learn to play the game (i.e. have fun at all), learn to play the game better (i.e. have more fun), or prepare to play the game in a new way.
IDK, just chewing on it.