It is now possible to jailbreak the iPhone 4 and all models of the Phone 3GS untethered, due to efforts of Pod2g and the iPhone Dev-Team.

However those of you who have used the untethered jailbreak for iOS 5.0.1 might have encountered an issue where iBooks crashes every time you try to launch the application.

iBooks is a free, downloadable app from the App Store. It includes the iBookstore, where you can download the latest best-selling books.

A few commentators have said that you can simply add the repo.insanelyi.com repo and install iBooksFix2 from there. But there are still many users who are having a problem after using Corona.

In his recent blog, Pod2g has given some good news regarding the iBooks crashing issue.  Pod2g has said that an update is on its way to resolve issues with iBooks crashing on iOS devices running the Chronic Dev Team’s latest jailbreak.

He said,“@xvolks worked to include @comex sandbox patches into the Corona GIT. Expect a Corona update soon in Cydia that'll fix iBooks and other softwares having sandbox issues. I'll update the blog when this is released.”

So the required update to officially fix the issue should be available in a matter of few days.