Ultrasn0w Update Unlocks iPhone iOS 4.0 for iPhone 3G and iPhone 3GS
The UltraSn0w iPhone unlocking software has been updated to support iOS 4.0.
The iPhone Dev-Team’s has updated Ultrasn0w to version 0.9.3, allowing you to unlock your iPhone running iOS4.
The update was announced on the Dev-Team’s Twitter stream. According to the release notes, it works with all basebands from 04.26.08 through 05.13.04:
iPhone DevTeam’s 3G and 3GS software unlock, now with added PwnApple. Compatible with basebands 04.26.08, 05.11.07, 05.12.01 and 05.13.04! Thanks to @sherif_hashim and @Oranav for contributing baseband crashes.
We will have an easy-to-use unlocking how-to guide coming soon.
NOTE: This post has been edited. It incorrectly said Ultrasn0w was for jailbreaking iPhones.
Leander Kahney is the editor and publisher of Cult of Mac, and author of three books about technology culture: 
