Ok so new to iCloud and os 5 and I was wondering if my laptop , my iPhone with os5 and my dad's laptop are all on same wifi what stops my Dad's laptop syncing with my iCloud ? And same goes about syncing how does the phone know not to sync with my Dad's laptop ? Not really bothered about iCloud backups just now so really how do I ensure it is turned off? I would rather back up manually on my laptop. I hope that made sense lol ?