hey. I am getting an iphone 2g soon (sorry 3g =\ no need for you) I have a very basic att plan with no (none, nada, nil) extra features on there. I think I am getting an unlocked one, but if it's locked it should work right? I am getting one in the States so i heard if it's att sim card it should be compatible? I was wondering if I could just use exclusively wifi for internet on the iPhone so the phone won't accidentally use mobile internet or something. My mother has a lg flip phone and she accidentally went on that medianet thing, didn't even do anything and got charge with some money. Anyway that's my concern, otherwise the iPhone should work... like a phone.. right?