Geohot has released his BlackSn0w unlock for the iPhone 3G and 3GS.
"blacksn0w is the unlock for the latest 05.11.07 baseband, and will also enable official tethering. blackra1n, a jailbreak for 3.1.2, has been updated to RC3, with hacktivation support, 15 second speed improvement, Tiger+PPC support, and installation of the latest blackra1n.app."
You can find instructions on how to use blacksn0w to unlock your iPhone here: Windows, Mac.
If you have already jailbroken using blackra1n, run the application again. You will see Icy replaced by an option "ra1n". Install this to upgrade your blackra1n application. Run the blackra1n application again. This time you will see "sn0w". Install sn0w to unlock your device.
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"blacksn0w is the unlock for the latest 05.11.07 baseband, and will also enable official tethering. blackra1n, a jailbreak for 3.1.2, has been updated to RC3, with hacktivation support, 15 second speed improvement, Tiger+PPC support, and installation of the latest blackra1n.app."
You can find instructions on how to use blacksn0w to unlock your iPhone here: Windows, Mac.
If you have already jailbroken using blackra1n, run the application again. You will see Icy replaced by an option "ra1n". Install this to upgrade your blackra1n application. Run the blackra1n application again. This time you will see "sn0w". Install sn0w to unlock your device.
Read More