Ok, I sold my 8 month old iPhone for near $400 (which shocked me). Before I mail it, I'm gonna pop out my SIM card and pop it into my old phone so I have something to use until July 11th. My first question is, I have jailbroken my phone before, but I was an AT&T customer so I did not need to unlock it. I have to jailbreak and unlock my phone before I send it to the buyer. I used ZiPhone before, and I'm going to use it again. However, I'm a bit confused on how the process works. Specifically, I should only jailbreak and unlock my phone, not activate it, correct? Also, should this be done before or after removing my SIM card? Or does it matter? Second, the fact that I sold my iPhone a month early and am using another phone with my SIM card from my old iPhone will not affect my ability to purchase a 3G iPhone on July 11th, correct? As in, contracts won't be affected and it will still only cost $199 or $299 plus whatever 3G data plans are going up to. I apologize for all the questions, just trying to get some peace of mind. If anyone can clarify, I'd appreciate it. Thanks.