A New Jersey teenager has unlocked the iPhone, opening the way to Apple's iconic mobile telephone being used by non-US networks.
The Associated Press news agency confirmed George Hotz, 17, had unlocked the iPhone and used it on T-Mobile, a rival to its sole US operator, AT&T.
The hacker says the unlocking takes about two hours and involves some soldering and skill with software.
AT&T and Apple have not yet commented on the news.
"That's exactly, like, what I don't want... people making money off this," he told AP.
The next step, he said, would be a non-solder solution: a way to unlock the phone using software alone.
Technology blog Engadget said on Friday that it had successfully unlocked an iPhone using a different method that required no tinkering with the hardware. The software was supplied by an anonymous group of hackers that apparently plans to charge for it, AP reports.
The agency notes that both the Hotz and Sim techniques leave the iPhone's many functions intact apart from its "visual voicemail" feature, which shows voice messages as if they are incoming e-mail.
The New Jersey hacker says he collaborated online with four other people, two of them in Russia, to develop the unlocking process.
He spent about 500 hours on the project since the launch on 29 June.
"Some of my friends think I wasted my summer but I think it was worth it," he told US newspaper The Record of Bergen County.http://news.bbc.co.uk/1/hi/technology/6963696.stm
What do you think? Personally I'd like to congratulate him and call him crazy.:w00t: