so i sold my iPhone, had a hell of a time downgrading from 2.0 to 1.1.4 but i figured it out after many hours, if any of you need to know i have posted a link that helps but pm me if you can't find it. anyways i jailbroke and unlocked using ziPhone 2.6b (what i always used on my iPhone) under the "do it all" command. worked like always, i'm just wondering if there is any way to tell if it is unlocked other than putting in a different sim card? i don't see any reason it shouldn't work, but i don't want to ship it to the guy and have it not work either. the guy i sold it to lives a couple states away and he is going to be running tmobile on it. i don't know anyone that has tmobile or any other cell phone around here other than verizon. thanks for reading.