Hi! I'm a proud owner of a new MacBook and want to now use it as the computer I sync my iPhone with. The only catch is that the iPhone was unlocked a little over a year ago with ZiPhone. If I plug it into the new computer and erase all content will that mess it up or ONLY erase the content? Is there any way I can do this while keeping all my SMS messages etc...? If not does anyone know of any decent programs that can copy the SMS' over? Thanks.