I seem to live in the last known area to have analog cable with Charter Cable in Michigan. We are surrounded by digital cable, but our Crockery Lake substation has yet to be rebuilt. DSL is not available in the area either, and even if it were, it would be iDSL at best. I'd love to pull in a T1 into my house and setup a little wireless ISP but I know for a fact that the instant I do such a thing, for a big cost outlay, suddenly digital cable will be available out here.
I know for a fact that there is a lot of interest around here for something better than ISDN. Right now when I'm at home, I'm on my cell phone with a data plan. So now it is a race between whether digital cable with cable modems get here first, or EVDO gets rolled out in Grand Rapids. If I pay off enough bills and can get enough people to subscribe to a wireless subscription, I might have to get a T1 in here for any decent speeds.
Anyway, long rant, but I would love to get VOIP on my little WRT54GS but over a cell phone on 1xRTT (144kbit - basically just about IDSL speeds - I sometimes get 16k/sec) , VOIP just isn't viable. Too much latency variance and not enough 'fat pipe'.