FWIW, there are sites out there claiming to have unlock and most of them are scammers and leechers. They all make money by using Dev Team's / Geohot's materials. Since day one, Dev Team always make the tool available for free, they don't accept donations and etc ..
You can search the forum for "jodi sanders", "jodisanders", "jodysanders" .... it was an interesting discussion.
Or you can read here: http://blog.iphone-dev.org/post/68156562/hello-jody