I have an iPad 3, an iPod Touch 4g, and a MacBook Air. All three have different data in Contacts, ICal, etc. If I use iCloud to sync them, will the data from all three devices merge (or will one of the devices be "the boss" - whatever data is on it is always mirrored exactly to the other devices)? An example: I sync the Macbook's data to iCloud first and then sync the iPad's (different data) next. Will the MacBook's data (that is not on the iPad) be added to the iPad, or will the data (not on the iPad) be deleted from the MacBook, or will they both end up with the same data - "merged"? Now if I delete some data from the iPad and sync again, will the data be erased from iCloud and therefor erased from the MacBook also? Or will iCloud notice the data missing from the iPad and put it back? Now throw in the iPod, and what happens?!!!!! I'm thinking that whatever is on iCloud is what is mirrored to the other devices. But if that is correct, every time I add or erase data from one of the devices (while not connected to iCloud), I'll have to manually add or delete that data from iCloud the next time I connect to it, then sync all three devices. Please help me figure this out - I'm CORNFUSED!!!!! Thanks in advance.