While being the source of much iOS news (and entertainment), Chronic is also a hardworking developer/hacker who helps iOS users get out of jams. His latest foray is into iPhone carrier unlocking. GSM carriers —such as AT&T in the U.S., or Fido and Rogers in Canada, or others such as Koodoo or Telus— can be unlocked including the just released iPhone 5. Since each carrier requires a different process, the fees vary widely.
As a special incentive to 9to5Mac readers, Chronic is offering four free iPhone 5 unlocks for those on AT&T. If you are interested, just put your name in the comments. Everyone else can go here for prices and availability for their GSM carriers (obviously—Verizon and Sprint users need not apply)