Okay, this is franksolich's "take" on the debate, for the illumination of lurking primitives; decent and civilized people may feel free to ignore this, moving on to the next comment:
At the very worst for decent and civilized people, this debate changed no minds.
If the undecideds and the slight-0bama-leaners took offense at the smiling senile old grandfather's smirks, and noticed Ryan was a competent adult, this debate changed some minds, but not the way the primitives wish they'd be changed.
This debate converted no Romney voters into Barack Milhous voters--although I'm sure we're going to read lots and lots of bouncies about how it did. Always remember the First Rule of Primitivity: DUmmies lie, all the time, DUmmies lie.