HT1311 Changing Apple ID on IOS Device and Family Sharing

Question

So how does the new Family Sharing feature for IOS 8 fit into changing an associated Apple ID?  We set up our daughter's iPod with my Apple ID so that we can share apps and content.  If we create her own Apple ID listing it as 'family' and then change the ID on her iPod, what happens to the apps that are already there under the primary ID?  Will she lose the status for all of her games?

Answer 1

In short, yes, you can create her own ID, invite that ID to your Family Share, and she will continue to be able to use the apps from your ID without any immediate impacts.
From my experience, logging out of an apple id on a device does not de-authorize or remove apps that are already loaded.  In fact, I regularly log out of one ID and in to another in the iTunes and App Stores.  The issue you will face in the future with your current approach is your daughter does not own any of the apps you have been giving her via your ID.  Way off in the future, when perhaps she is no longer in your Family Share, all the apps she got will stop updating unless she re-purchases them.  That may not really be a big risk or concern, but its a reality.  The only caveat to keep in mind when logging out and in with different accounts is you want to avoid changing the account used for automatic downloads.  Apple (due to licensing restrictions from content owners) does not let you change automatic downloads frequently (you're locked in for 90 days).  You can still manually download content from other accounts, just not automatically.
Prior to Family Share I thought of content purchases in 3 buckets: what I want to own with my ID, what they own with their ID, and what we want to share.  Therefore, before Apple introduced Family Share I create a "dummy" Apple ID for my family as well as IDs for each of us.  I keep the password for this dummy account to myself, and I log all my kids devices in to the App Store using this dummy id (it's got a good name we all recognize that has internal family meaning).  We often load up this dummy account with gift cards, and when child wants to buy an app, they ask me to put in the password (so I maintain control of what they buy), and through this ID the app becomes available to all of us.  Their own Apple ID is used for all other services and is their main iCloud account logged in on their devices.  In time I expect they will start to buy their own content using their own IDs.  But they will never lose access to the content on our family dummy account as long as I'm willing to eventually share the password with them.
With the new Family Share we will continue to be able to share their personal content until they grow older and "leave" the Family Share.  However, when that eventually happens we will still have the dummy family account and be able to share apps with each other using that if we want.  We won't lose the apps we bought on the dummy account we share when we stop using Family Share as long as the password is available to each of us.
There are a few limitations to my approach which the Family Share service improves on so I expect to use Family Share as well (I'm still experimenting with it). 
Way more info than you asked for, but hope it's helpful for your planning.