iPhone 4S - Just jailbroke with Firmware version 5.1.1, followed the instructions to the letter, and it went flawlessly. The key is backing everything up, restoring your phone to 5.1.1 fresh, then jailbreaking. Cheers!
Simply awesome. I have been using SuperDuper! for years now, and love it! It has an intuitive interface (I love how it states exactly what it intends to do before you click "copy now") and it works beautifully. I've even had excellent success cloning to a new (Lion-only) encrypted backup drive- no worries!
+2
Absinthe
MacBloke reviewed on 25 May 2012
SuperDuper!
MacBloke reviewed on 11 Jan 2012
AppleJack
MacBloke rated on 10 Sep 2011
[Version 1.6]