I think that policy wise, the debate was a toss up. But Biden's sophmoric act probably will not play that well with most voters. It was borderline childish.
We will see how the next Presidential Debate goes. President Obama's team will crunch the numbers, and determine if acting like a fool is in the President's best interest, or they will tell him to be more forceful with Romney, while not coming across as crass and mean spirited.
This will be a tough row for the President to hoe, because he knows he is on the defensive. And like a fish out of water, without his teleprompter, he might not be able to do much better than last time.