Any apple-pro's out there, your help is very much appreciated, I'm an absolute newbie and I have a couple of questions: 1) I have an old iphone running 1.1.1, it's jailbroken and unlocked using anysim. I'd like to upgrade it to 2.0 firmware, and I've read a lot about the Pwnage Tool. So, my question is: will this Pwnage tool work on my unlocked 1.1.1 iphone, or do I need to upgrade to 1.1.4 before pwning? What happens if I restore my iphone to 2.0 using itunes BEFORE pwning my iphone? will it get bricked? My main concern is to avoid bricking my iphone!! What can I do? 2) I'm heading for college soon and I'll be travelling a lot between the US and my home country. Will an unlocked iphone still run on AT&T? In other words, will I be able to use at&t while i'm college and my local carrier when I'm abroad? ANY ANSWERS WILL BE VERY much appreciated!