Hello everyone! I have a quick questions. I have a 3GS with older bootrom running 3.1.3 and the old 04.26.08 baseband firmware. I use my phone unlocked, and since the new Ultrasn0w came out today with support for iOS's 4.0 baseband (05.13.04( is there any reason to NOT update my baseband firmware? I have my SHSH's on file with Cydia for 3.1, 3.1.2 and 3.1.3 so I'm not worried about falling back to 3.0 if need be. I was just curious about unlocking. Thanks!