Hi, Apple replaced my iPhone 3GS yesterday with a new one for $200 (my phone was out of warranty). I was able to restore my personal stuff but I now am running ios4.1 (according to iTunes). What jb software can I use to do a jb of 4.x (whatever newest ios version that will work with my circumstances)? Is pwnagetool okay? I need to be able to tether again (I am on AT&T - unlimited data plan). I was previously on 3.1.2 - was trying to jb when I realized my power button wasn't working properly, so I took it to Apple and they replaced the iPhone 3GS with a remanufactured phone for $200. They claimed there was water damage so there was nothing I could do. Finally, is unlocking possible yet? I know there was an issue with unlocking my 3.1.2 jb'ed iPhone 3GS but don't remember what... I would prefer to be on 4.1... Thank you! Thank you!