Jailbreak developer pod2g, who released the iOS 5.0 and 5.0.1 untethered jailbreak for the iPhone 4S and iPad 2, has provided a status update on an untethered jailbreak for A5-powered devices — the new iPad, iPhone 4S, and iPad 2 — running iOS 5.1. Unfortunately, his tweet suggests that a jailbreak won’t be publicly released for at least several weeks.
@pod2g: About [the] 5.1 jailbreak for A5+ devices : it’s not out and I have no clue when it’ll happen. I’m working some hours per week on finding [vulnerabilities] … But right now we (cdev) have some pieces of a userland jailbreak, but we miss some, and even if we had them all, there’s weeks of work to put them all together in a public ready tool.
A few weeks ago, three different jailbreak exploits were discovered for the new iPad running iOS 5.1 by MuscleNerd, Stefan Esser (@i0n1c), and Grant Paul (@chpwn). At the time, MuscleNerd stated that his personal jailbreaking method had lots of work remaining, while Paul has echoed those sentiments. Esser, on the other hand, has made it quite obvious that he will not be releasing his jailbreaking method to the public.
Older devices powered by Apple’s A4 chip, including the iPhone 4, original iPad, and fourth-generation iPod touch, can obtain a tethered jailbreak on iOS 5.1 by using the latest version of redsn0w by the iPhone Dev-Team.