QUESTIONS
hi I'm Brazilian, I'll buy a 4g ipod touch i have a doubt I can use the U.S. app store but the ipod in my language in this case Portuguese
iPod touch, iOS 5
You can only use the App/iTunes store in the country yo are physically located and your account has to be associated with that country.
To change language
iOS: How to change the language when it's set to one you don't understand