Geohot has recently announced a new blackra1n version, which will be intended to unlock iPhones with OS versions 3.1.2+. The unlock will allow the iPhone to operate on all GSM carriers, without restrictions.
For many US iPhone users, that means you can now choose between T-Mobile and AT&T. And if you’re abroad for any reason, pick up a cheap SIM-card and plug it into the iPhone–you should have no problem (as long it is also a GSM carrier)!
Check out an eBay auction that is now advertising a 3.1.2 iPhone 3GS that’s unlockable with Blackra1n.
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