Unlock 3GS with BB 05.16.02
I'm a little confused with all of the recent changes with jailbreaking and ios 5.1 that were announced in late December. I have a 3GS with BB 05.16.02 and it's currently on ios 4.3.5. I'd first like to erase the phone in total (I'm reselling it), then jailbreak and unlock it. I believe I can upgrade to ios 5.1 after I reset all settings and jailbreak it based on the recent developments, but I don't know if that'll change my BB or if I need to save it, or if it makes any difference since neither are unlockable.
Basically, what recommendations does anyone have for being able to unlock, untethered, my 3GS?