We have a new sales executive who needs to sync her iphone to the mac here at work. It is usually synced to her pc at home. All she needs are her email contacts to sync. She does not want to put all her itunes music and personal files on her mac here at the office. Is it possible to sync the iphone to both a mac and a pc and be selective about what files sync from each machine or am i dreaming of a utopian world where all devices live as one in blissful technological harmony? TIA