Since the iPhone comes preloaded wtih a sim card to be activated through iTunes i was wondering if i could remove that sim card and use it with any other att phone whenever i don't want to use the iPhone.....for example i bought a jet ski and when im out on it i want to have a phone on me but obviously not the iPhone.....so what i would do is remove the sim card from the iPhone and use it on my other regular phone so that i can have my same number and such....it should work right i mean thats how it works with other phones so i don't think the iPhone is different right?