I've always done my iPhone purchases and upgrades in my local Apple Store, but this time I decided to avoid the craziness and order online. I pre-ordered this morning through apple.com, no problems and my 4S should be arriving 10/14. I've never done this without going to the store before so I have a couple questions for those who have. Does my new phone automatically replace my previous phone on my celluar account once activated or do I need to call my carrier and let them know of the change? Can I pre-sign for my package if someone isn't going to be home? Does tracking through apple.com show you estimated delivery times? Thanks in advance.