Porting will be handled once your company decides it does. They may choose to roll it out as you get your phone, or before you get the new phone. You may also experience mixed service so until you're sure the port has ahppened, carry both phones.
Originally Posted by Korwin
Yes you can sync multiple iPhones with one computer. When you plug the iPhone in it will give the option to set up as a new iPhone or restore from a backup of another iphone. Choose New iPhone. Make separate playlists for each iPhone to keep music syncing easy. Apps will sync on their own.