Romney with a +2% lead with this kind of breakdown is nothing to write home about. If he had a 2 point lead with a D+7, +8, or +9 breakdown would be a reason to shout.
OH is about +1 R, and always over performs over national polls for Rs by .5 percent. So yes, this is a 3 point lead at minimum, Romney is really now at 50 here, and it really is over for Zero barring an R meltdown.