Is it possible to synch multiple iPhones on the same computer? My wife and I both have iPhones and not sure if they should or can both be synched with the same iTunes and same computer. We already share the iTunes with my iPod Classic and her iPod nano
You can each make your own playlist(s). iTunes remembers which sync to which phone. Only way to 'share' apps is for you both to use the same iTunes Store account (apps are linked to the account used to download them).
I'm assuming you both log into the same user account on the computer - else, you'll have to share the music library across the accounts.