his instructions involve soldering and such, here is another place thats (allegedly) going to be just a software based unlock:
http://www.iphonesimfree.com/Its been confirmed by many popular apple news blogs (see
here) that it works with T-Mobile

. I like ATT but I really want to be able to use it outside the country, particularly in canada where 4 days of spuratic roaming got me a data roaming bill in the 4 figures

.