If you seen a recent post of mine, I will be landing a Brand New 16GB 3GS w/o contract for $300 from my buddy who works for Apple. This WILL be my first iPhone! But how do I go about this? Is there a way to just pop my sim card in since i already am on contract with ATT? Or do I have to let them know so they can jew me with all the iPhone stuff? Someone please throw me some info here. Thanks!