[UPDATE]: One other thought, as triggered by something I saw over NRO: ye gods but were those questions dull.
McCain got some good shots in with Fannie/Freddie, Obama got a good moment or two betraying the progressives over nuclear power, offshore drilling, and Israel; I'll give the closing statement to McCain, but Obama humanizes amazingly when he's talking about his wife. No insanely bad howlers this go-round. This was, in fact, kind of boring all around.
So, I'm going to say that things are unchanged, which is advantage: Obama. On the bright side, I called the first two debates for the GOP, so for all I know this is going to turn out to be EPIC WIN for McCain.
PS: I'm not depressed, however. I can live with a bye.