Quando mi sono trasferito all'estero ho chiesto ad Apple se deve cambiare la posizione del mio ID Apple in quell'altro paese. Da quello che capisco dalla loro risposta, non è necessario né obbligatorio.
Tuttavia, se dovessi cambiare la posizione, ciò implicherebbe senz'altro qualche serio cambiamento. Ora, 3 anni dopo, ho utilizzato il mio ID Apple negli Stati Uniti all'estero senza alcun problema.
Questa era la risposta di Apple:
This is xxxxx from iTunes Store Support and I'll be glad to be your
Advisor for today. Rest assured you will have my personal and prompt
attention to this matter.
I understand that you have questions with your Apple ID as you will be
moving from San Francisco to xxxxxxxxxx. I will try to answer you
inquiries to the best of my ability.
For your first question if would need to change the country associated
with your account, that would be your decision. You have the options
to change the country associated with your account and use the same
Apple ID or you can just create another account that you can use for
xxxxxxxxxx iTunes Store.
If you decided to change the country associated with your account and
use the same account, let me provide these reminders before doing so:
1) If you have store credit, you must use the credit before you can
change countries.
2) You will need to download all purchased content. In addition,
rented items must be past their 30-day expiration. For more
information on rentals, please see:
http://support.apple.com/kb/HT1657
3) You must provide a payment method, such as a credit or debit card
associated with a valid billing address in the new country. An iTunes
Store Gift Card issued in the new country is also an acceptable
payment method.
4) After you change countries, you will no longer receive application
update notifications in iTunes for the apps you purchased in your
original country. However, you'll still receive update notifications
on your iOS device for any applications installed on it.
5) If you have an iTunes Match subscription, you can't change
countries until the subscription has expired.
6) If you have purchased a Season Pass, you cannot change the country
associated with your account until that season is done airing and the
last episode of the season has been added to the iTunes Store.
7) If you have been using iTunes in the Cloud to download past
purchases from your Purchased page, these purchases will no longer
appear when you change the country.