One thing is clear: The polls were wrong!
Obama may still win, but he is not winning by the margins the polls predicted. In state after state, it is obvious that McCain is doing better than was predicted. The exit polls also appear to be wrong.
Until we see how McCain does in North Carolina and Florida (he has to win both to win the election) we cannot see how the race will go nationally, but it is clear that this is no blowout as the polls had predicted.