A new version of the Spirit jailbreak has been successfully tested on the iPhone 4 mere days after being officially launched, as it takes advantage of the same userland exploit found in the iPhone 3GS and iPhone 3.1.3 that has yet to be properly patched by Apple.
The new jailbreak was expected to be released this week, but was delayed since the version tested makes heavy use of Appleâ€™s code, with another version in development that does not utilize proprietary code.
With the Spirit jailbreak being delayed to take into account the latest iOS update, the new software will also function on the iPhone 3GS and iPod Touch [MC version] with the new bootrom as well as the third generation iPod Touch when released. The latest update to iOS 4 is expected as soon as this Monday, which is expected to address the biggest complaint with the device in regards to antenna reception.
Another version of the redSn0w unlock tool is also being developed as the iPhone 4 contains a completely new baseband with a new OS developed by ExpressLogic called ThreadX, which replaces the previous Nucleus baseband found in previous models.