iPhone Dev Team has published a post providing more details about the ‘Spirit’ jailbreak that Comex is planning to release shortly that can jailbreak iPhone OS 3.1.3 for all iPhone and iPod Touches and iPhone OS 3.2 for iPad.
The ‘Spirit’ jailbreak is the first userland jailbreak since iPhone firmware 1.x, which allowed users to jailbreak their iPhone using Mobile Safari.
Here are some useful details about the ‘Spirit’ jailbreak that will be released by Comex shortly:
Spirit is an untethered jailbreak.
Spirit works on all devices. (However, the redsn0w and PwnageTool flows will continue to work on those devices they’ve always worked on)
Spirit does not include a carrier unlock.
Spirit requires your device to be activated or hacktivated
It will not be Mobile Safari based like the iPhone firmware 1.x version.
iPhone Dev Team explains:
Userland jailbreaks are more troublesome for Apple since they expose security weaknesses that exist even for non-jailbroken owners. As such, Apple is likely to close them soon after they’re made public. One recent example of this is the SMS vulnerability exposed at Blackhat last summer. Apple released new firmware to close that hole within a day.
The Spirit jailbreak is most useful for newer devices: iPhone 3GS, iPod Touch 3G, and the iPads. Unfortunately those devices are the same ones that Apple can prevent you from downgrading unless you’ve got a backup of your personalized SHSH blobs. Unless you’ve backed up your SHSH blobs for vulnerable firmware versions, you’ll lose the ability to use the current Spirit jailbreak if you accidentally upgrade.
Please note that Comex has hinted that he might not release the Spirit jailbreak on Friday as he had announced earlier due to the launch of iPad 3G. But he has promised to release it in a few days.
Update:Dev Team’s blog]