so who pays for the data sent out from our iphone each time...must be us, correct??

some applications do auto updates....so if your 3G is on.....does tat mean it will use your 3G to update without notifying you?

i use ipod and hv itunes on my pc. u use a paid internet security and i notice each time i use the itunes or every other day ( when i do not ) it will auto try to access the internet by itself, my internet security alerts me each time.
so i am guessing for iphones it must be the same.