PwnageTool 4.01 has just been released by the Dev Team, the new update brings compatibility with the iBooks application, practically the Dev Team has implemented the same solution as in the case of redsn0w, so if you do not need the iBooks application then you have no reason to take this new version of PwnageTool.
You can find a tutorial that will teach you how to make a custom ipsw with PwnageTool 4.01 here.
PwnageTool 4.01 can be downloaded from here:
[download id=”59″]
