The iPhone dev-team has released Ultrasn0w to SIM unlock the iPhone 3G running the 3.0 firmware. It’s available via Cydia, which installs when you use the recently released PwnageTool to unlock the 3.0 firmware. There doesn’t seem to be any caveats besides advising T-Mobile US users to turn off 3G before install.
The iPhone dev-team has released an updated version of PwnageTool. It supports jailbreaking iPhones using the 3.0 firmware. This update does not include the much easier to use QuickPwn, but it should be coming soon. The release also doesn’t include the UltraSn0w unlock which will be coming via Cydia.
Did you upgrade your iPhone to 3.0 yet? 9 to 5 Mac has posted a very good reason to upgrade: enabling tethering is almost stupidly simple. Just run a simple command and then go through a restore procedure. All thats left is to sit back and enjoy your other new features you could find on a four year old Nokia.
[Related: ultrasn0w announced]