Sure, Rasmussen has Mitt ahead by 3. There are others where Mitt is within one or two. The polls that show a 5 point lead or greater for Obama are either tracking polls that haven't gotten rid of the convention bounce yet, or are hack polls with ridiculous samples (dramatic oversampling of democrats).
As for Hunstman, exactly where would he be getting his support? The left would be backing Obama, along with some in the middle. No way Huntsman attracts many on the right at all. Not enough votes left in the middle to beat Obama, that's for sure. Huntsman was a train wreck in the primaries, and he'd be worse in the general.
Mitt is going to take this thing! He just took Obama's best shot, and he's still right there.