Just taken delivery of my wife's new iphone 5c (yellow, not convinced in the flesh). That makes it (oh the shame) 2 iphones and a shared ipad in the house. Single laptop (macbook, it gets worse) repository for all music, photos etc.
I'm trying to work out the best approach - single apple id for all of them or different one for her (and maybe a third for the ipad). Single seems to make sense as all the bought apps can be used on all 3 devices without buying them again, all the photos taken will stream to a single icloud account.
But presumably this nauses up imessages, facetime etc. Any other benefits to sorting her a separate apple id?