i'm sorry if this has been asked before or if it's a silly question, but i will be switching from a windows 7 desktop to a macbook pro in the near future and i'm curious how this will affect syncing my iphone/ipod. for my iphone, obviously it will want to replace my music files and photos and things, but what about my other information that it doesn't necessarily get from itunes? like my contacts, messages, settings, etc. will those be affected at all by switching computers/OS? if so, how? and then my ipod. i have a classic that i bought when they were first released yeaaars ago, so i may be a bit confused on this, but i remember it asking about operating system or being formatted to specifically work with windows. what does this mean? is it a permanent thing, meaning i can now only sync it with itunes running on windows, or can it 'reformat' itself to work with my macbook? or option three, i'm completely crazy and this didn't actually happen. any help/tips/info about using these with a new mac would be great. thanks.