IPhone when im up for an upgrade.I am? i have unlimited texting, limited calling(1,000 minutes shared between me, my mom, and dad.), and limited internet(2G per/ month) im up for an upgrade, and i want an IPhone! i want a 8G/16G iPhone 4,4S, or 5. I want to stay on the same plan.. Nothing to change except that i have an IPhone (T-Mobile)