this article over at Popular Science explains how to unlock your phone. I think most providers concider this illegal, but i dont know what will happen if you do this. i dont think they can do anything, but be careful. i got my 7650 unlocked from Vodafone, but i got it unlocked cause i had over 300EUR on my phone since i got it. like vodafone, a few mobile operators actually offer unlocking, either for a fee or free. A friend of mine has all the cables for unlocking most, if not all, nokias. theres also software, which is available here that can calculate an unlocking code for most nokias. handy.