I have cingular and plan on getting the iphone tommorow. My contract has been over, so I got 200 for the phone, and around 30-40 for the activation plus the sim card. So what I wanted to ask is, I already have unlimited texting, would I be able to cancel the 3G internet data? I cant add another 30 dollars a month to my families plan because we simply cant afford it.. its to much money to spend just on phones.. ANd is there anything other monthly charge added to my bill? I have 4 lines and we share our minutes.