I have a prepaid plan with Rogers and am currently using a Samsung j706. Just for one less thing to carry around (iPod Touch and cellphone), I was thinking of swiping an iPhone off Craigslist and putting my j706's SIM inside. A few questions: 1) Will Rogers know or care that I'm using an iPhone on prepaid? 2) I have to pay 3¢ per kilobyte for data, screw that. Is there a way to terminate ALL data connections to the iPhone and just use Wi-Fi? 3) Is syncing music to an iPhone the same as syncing to an iPod? When the iPhone first came out in 2007, I think I remember reading that music syncing is "different" somehow. I could just be going crazy. 4) How well does the iPhone hold a battery charge (compared to a 1st-gen Touch)? Thanks for your time.