There seems to be a disconnect between the way the pundits and the politically active class saw the debate and the way the average viewer saw it.
Since I’m in the politically active class, I definitely had a different take on it than the other people who were watching it with me. McCain exceeded my expectations, given his actions of late on the campaign trail. Obama, on the other hand, came across as the man I’ve come to respect and admire over the long course of this election cycle. I fell into a trap, because of those views.
Because Obama came across the way I expected, he gained no points from me for performance, while McCain did better than expected. This boosted McCain in my view. Uncommitted voters saw it differently.
Parsing the CBS post-debate poll (pdf) of uncommitted voters shows some interesting findings.