I was just reading and listening on the news about IP addresses and how so many ISPs are on wireless routers now, that basically all they can tell is where the server is based for that ISP (like if Verizon is based in a certain state, or whomever you use). They said the days when your computer was "issued" an IP address and it stayed the same is basically done with. So, unless they are asking for a name and address or social, I doubt they can track who is voting from where. I know they were having this discussion because of the whole Chris Benoit case, and the person who posted to Wikipedia about the wife being dead, and they had to figure out who posted it, even though IP address came from on state, it didn't mean the person was in that state.