I have setup my own mobile phone to be sync-ed with mac osx sync. So all contacts of my mobile are stored to address book of osx, and vice versa. I want to do it for another mobile phone. But I do not want to have the contacts of the second phone to be synchronized with the same address book of osx, that I use for my primary mobile phone. I want to have them separated. I do not want a united address book with all contacts of both phones. How can I have the contacts of each phone in a separate address book? Is there a way to do this?