This is definitely true. My question is more along the lines of "what scalability lessons will we have to learn now that the World of Warcraft guys already know

This is definitely true. My question is more along the lines of "what scalability lessons will we have to learn now that the World of Warcraft guys already know" (more or less). It'll be a different world from the firestorm of short lived (often stateless) connections we worry about now.