I'm expanding my wireless ISP into another state now, but unless you live in TN or KY it's probably going to be a long time before I'm anywhere in your part of the US. I've also been working with other independent wireless ISP to expand to other states. Really, right now; about the only thing that will jump-start wireless ISP is for people to band together, get the funds and research up, and do it yourself I'm afraid.
The horror...
Are you using the ITFS band? How well does that work?