http://www.theglobeandmail.com/servlet/story/RTGAM.20070824.wriphone25/BNStory/Technology/home
A teenager in New Jersey has unlocked Apple's iPhone so it will work on netw
orks other than AT&T's, including those in other countries. In addition to, George Hotz, 17 unlocked the phone and was using it on T-Mobile's network in the United States. Apple launched the eagerly awaited phone exclusively on AT&T's network in June07, and immediately faced criticism for how resistant it was to any modification.As iPhone works on Global System for Mobile telecommunications (GSM) networks, which more than 80 per cent of the world's wireless carriers use. With a typical GSM phone, the user can open it and swap the subscriber identity module (SIM) card provided by the carrier for one from another operator. The iPhone design, however, prevents easy access to the SIM card, and the device is wired to prevent non-AT&T SIM cards from working.
Hotz posted step-by-step instructions on his blog on how to open the phone and disconnect the wiring so that any SIM card will work, which means it can be used on any GSM network in the world.
