I been having this phone jailbroken and I was wondering what can unlocking the phone do? Does it give me free 3G anywhere or what? I got ios 5.1.1 and I couldn't find the ultrasn0w fixer 5.1.1... I only saw 6.0.1 and I am planning to jb it after updating to ios6... Does unlocking give me free 3G with the stock sim from AT&T?