You will need to think/look into how you are going to let them get apps/music. If you have one account for the whole family, then you would only need to purchase the app once. BUT, if your kids start getting gift cards then you will need to keep track of who has how much credit and what to do if one uses credit that isn't theirs. If they each have their own then you don't have to worry about one accidentally using credit that isn't theirs, but you will need to buy apps for each. Figure out if they will have the password, or need you to put in it each time to buy something. Remember that many of the popular games such as Farmville require in app purchases. The game itself is free, but many people buy extra items in app that add up quick to be expensive.