from Business 2.0
With uncanny serendipity, three teams trying to unlock Apple’s (AAPL) iPhone so that it can work with carriers other than AT&T (T) have reached their goal within days of each other.
First out of the block was George Holtz, a 17-year-old student from New Jersey who posted a 10-step technique on his website Thursday that requires cracking open the iPhone and doing some tricky soldering.
His accomplishment was quickly overshadowed by a team from iPhoneSIMfree.com, which developed a software-only technique that does the same thing without having to void the iPhone’s warranty by opening it up. The group demonstrated its procedure today to Engadget’s Ryan Block, who vouches for its authenticity on the blog and in a video. (Note the “T-Mobile” in the upper left hand corner of his iPhone screen, pictured above.)