If you have updated to latest software and baseband version of any iphone, UNLOCK IS NOT THAT EASY
so sorry DJCK (im not saying you can not do it)
But if its new baseband 05.16.02 and new version of IOS 4.3.3 (iphone OS)
You can not unlock via software soluton (only factory unlok chk my site
www.unlockman.com)
not yet at the moment but software will comeout soon for free unlock latest IOS
Follow GeoHot or Hackintosh on twitter for uptodate iphone unlock exploits
ok then
time to get more uptodate before making any comments on any subject