Yesterday i took my lg shine sim card out and put it into my brothers old iphone 3g. After about an hour, i took it out of the iPhone just in case there would be extra charges. About 5 hours later, At&t texted my lg shine saying that you need to have a data plan for the iPhone. So today i looked on the at&t website and they added the $15 data plan to my account. Is there anyway i could take off the data plan for no charge on the bill? I was also wondering if there is a way i could put my lg shine sim card into the iPhone 3g and use it without the data plan, and at&t wouldnt notice??