I think people here overestimate eagerness of people to push possibilities of their hardware and generally knowing more. ITs are advertised as "web browser" in many forms (www, mail, rss, skype) and it comes fully featured for that. Why should users look for more?

Also in that debate two sides carefully forgot one event (for different reasons): Christmas Debacle with Nokia's melted servers. To bring servers to their knees you need really big traffic or totally incompetent admins. Why I believe in some weakness on Nokia's side regarding PR I refuse to believe that total *****s set up servers. So, I think the most logical reason is big, big traffic brought by automatic updates.