Absentees are thought to prefer Mitt by 6 points...

... and to make up 1/3 of the final vote total. 

Mitt's Intrade numbers hit bottom around 10. Now they're in the mid-thirties, whereas McCain is in the sixties, down twenty points from a few minutes ago. 

I'm revising my earlier Intrade faith. I just don't think it's a reliable predictor when a race is this fluid.