My prediction on poll numbers post debate: not much change now....

[NewYorkerfromMass]

but later we will see more support for Kerry.
The reason is that Kerry's solid performance has made it possible for undecideds and even "weak Bush" voters to later switch to Kerry.
The favorables (and other intangibles) for Kerry went way up, and while no commitment is immediate, it has laid the groundwork for a big shift later.

This is the kind of plus that people take into the voting booth- it crushed a lot of doubts, and I'm saying we may not see the payoff until election day.