So what is it? Easy. Obama was losing. But Hurricane Sandy turned out to be the anti-Unicorn, the Romney-slayer that killed Romn-mentum and pushed Barack Obama over the finish line, even though he was losing and deserved to lose and was also socialist.
As I've said repeatedly, the numbers are still plenty close enough that we could be surprised. Polls can be off by a few points. All the polls can be off by a few points for any number of reasons -- though far more likely because of methodological or turnout misjudgment than because of random error.
But things really don't look different today than they did a week ago or frankly even two weeks ago.