I think it was a tie. But I am heartened that a lot of polls show undecided's went overwhelmingly Obama.
My own biased POV...
McCain looked cranky, and would not make eye contact with Obama. There something there that Obama needs to exploit. I think it's simmering rage that McSame is barely able to contain. Make him pop and the election is yours.
McCain sounded condescending, like "Why am I debating this uppity young upstart whippersnapper?"
Obama, find the trigger phrase that'll make him pop. Cut him to the quick, if his lips are moving, he is lying. Don't readily agree with him, McCain is an erratic, unstable, moron, reciting soundbites for his next commercial.
Hit him hard: McCain = Bush, McCain(heart's)Bush
When he sez that many congressman are in jail, remind America that they are overwhelmingly Republican. And that McCain was deeply entangled himself in a financial meltdown scandal. (Can you say "Keating Five"?)
And remind America over and over that it was all these "experienced, understanding" deregulating, wise old Republican men of Washington that got us bogged down in Iraq AND this financial mess. It plays right off his condescending and pompous attitude. This is a Republican recession/depression. (Once again, they do know how to throw a GRAND OLD PARTY!). Make them own it!