Back in the day when you signed up for a .Mac account, it by default, became an Apple ID, even if you already had an iTunes account with hundreds of purchases.
I'm in that boat.
My choice right now is to:
A) Give up my iTunes account and lose all of my music and movies (and the Apps I developed under that account) and stick with my MobileMe Apple ID
B) Give up my MobileMe account, and getting new email addresses for my family (yeah, I have a family MobileMe account that provides email addresses calendars, and storage/iDisk for me, my wife, and my son.) and start over from scratch.
Apple created this problem by not letting .Mac users use their existing accounts when they signed up for .Mac.
The second problem I have, is that my MobileMe account is a Family account with multiple email addresses, calendars, and storage space.
How does that map onto an iCloud account? As MobileMe is our main web service for mail, calendars, etc, I haven't been willing to risk losing it through migrating to the beta of iCloud.
I probably will hold off on using iCloud for real until this issue is resolved.
For family accounts, you will have to pick the primary email address (apple ID) used to create the instance of MobileMe. All your other family members will have to have their own accounts as well. This means that your kids purchases under your account (for iTunes, Mac App Store) will be under your main AppleID, and if they want those apps, videos & Music, they will have to use the main AppleID, or repurchase them.
Not the greatest solution. The solution/work around will be to pick the one AppleID you want to use, and then manage all the purchases on the various devices under that one ID (a pain) or set each member of your family up with separate AppleIDs and then use those credentials on the separate devices under the iCloud set up. This is also a pain because they will have to repurchase apps, music, and video that they won't have registered under their new IDs.
The bottom line here is that it will be a hassle for anyone with family accounts.
SWH
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I just wish I could delete 1 or more of the "5 Computers restriction" that died a long time ago. Without me being able to log in to deauthorize the computer, it's still on my "5 allowed" list and I need access to my iTunes for a new computer(s)
You do have the ability once a year to deauthorize ALL computers from the list. And then just re-add your current PCs or Macs to remove the old ones from the list.
In iTunes, go to Store, View My Account. If you haven't signed in, you'll have to sign in first, and then you will see, right under Country, the option to "Deauthorize All."
Then re-authorize your current computers.
SWH
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I hope they allow merging of accounts from different countries, I have a US account, a Korean account, and an Australian account. As I live in more than one country and travel a lot I use and buy apps from each country. Some US apps are not available in other countries or are designed for a specific region. I have credit on each account, I would love to merge these accounts. I have them all on the same password but the 90 day issues is now messing with me. This one problem is huge and is a big negative for Apple as they target IOS devices for business people, but not international travellers that need apps from different stores due to locality issues in releasing.
Not only this, they need to be able to select English in the Korean store, I hate how the app store and website goes into Korean when I select that store, I live in Korea but cannot read it, give me English so the stores are usable.
Have you thought about having a vpn (i.e. witopia) that will allow you to be in any country, and "phone home" via vpn to access a single store? I do this when I travel and it works really well.
Of course each country's store doesn't carry all apps in other stores, so your sort of stuck, but it may help.
I haven't seen anything about combining AppleID's for other country's stores with an AppleID associated with a US AppStore account.
That would definitely make life easier for you.