Delaware County is solid Bush Country. It is the county immediately north of Columbus. It has seen a lot of growth. One of the big reasons Franklin County is now Democrat is Delaware County's growth.
I doubt that Delaware County will be the last county in the state to file something like this. I saw some place where the folks in Allen County (Lima) are not very happy about this potential recount. The Allen County folks said they were in the process of talking with other counties.
You forgot Licking and Fairfield counties too man!! and to a lesser extent Pickaway as well....
But seeing that Columbus and Franklin county were much closer this time around than last, Kerry's people had to know they were in for a long night this time around...