My 3GS has finally bitten the dust, cracked screen & water damage, back light does not work. My contract is up for renewal & I could get the Iphone 4, but I want to wait ffor the new iphone!!! Was wondering if if I could just reactivate my original iphone?? What would I need to do?? Just switch out sim card?? Or do I need to go to ATT store for them to do this?? Nay help would be greatly apprecited!! I need a phone!! LOL!!