model 3Gs version 4.3.1(8G4) carrier AT&T 10.0 model firmware: 05.13.04 I understood that I can do an untethered JB with my device, because of the old bb... 1. If I update to 5, do I need to use a special procedure or I can update from iTunes and then run redsnow? 2. Is the unlock possible yet with iOS 5 for my phone? thanks in advance!