As an experiment, I tried putting the sim card from my att activated 2g original iphone, into a new 3g phone of a co-worker. (besides the whole "you got your chocolate in my peanut butter moment") it ...

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...

I was given a 2G iPhone without a sim card, and I would like to unlock it simply to use as an iPod. Does anyone know of a simple way to do this? I've tried ZiPhone, but I can't get it to recognize the ...