@musclenerd just tweeted that they managed to jailbreak the iPhone 4S and the iPad 2 running iOS 5. There is still a lot of work to do, so we shouldn’t expect this jailbreak to be released soon. It is going to be a userland exploit which means we could see a new version of jailbreakme.com.
VERY preliminary 4S JB: twitpic.com/76vcp4 twitpic.com/76vct2 (Huge missing pieces prevent public release. LOTS of work left) - musclenerd
With every new jailbreak, there are a few problems here and there. One of the major problems with the iOS 5 jailbreak was iBooks. Today, iH8sn0w managed to get iBooks working on a jailbroken iOS 5 device.
The issue was dealing with how redsn0w/sn0wbreeze did sandbox patches in the kernel. For those that don’t know, sandbox is a security measure that is used to ensure applications such as Safari don’t have access to personal information or system files. - iH8sn0w
