McCain polling ahead or even

Depending on which poll you follow.

USA Today: ahead 50-46
Gallup: ahead 48-45
CBS: 42-42

(The CBS poll was taking Mon - Wed, which would have been prior to McCain's and Palin's speeches.)

It's also important to note that candidates who lead after a convention still have just about a 50-50 chance of winning historically. But this does prove that McCain is definitely in it.

I haven't been able to track down state-by-state polls to see who's leading in battleground states and it's too late for me to spend more time trying right now...