Interesting. Could something be said of environmental factors? Technology progresses much more rapidly in today's environment than in 2006's. For example, I had a Palm Treo and MySpace ruled. We've since assimilated social networks into our culture so much so that a new player with the right formula could break all the rules, perhaps?
I do agree that the effect on American politics will be long in coming, barring some black swan event. But in smaller enclaves like New Hampshire, whose freedom loving folk hawkishly participate in local government, this platform could quickly become an important tool with substantive political effects.