Well, about language differences between European Portuguese (Portugal) and Brazilian Portuguese, you can find here some information: http://en.wikipedia.org/wiki/European_Portuguese http://en.wikipedia.org/wiki/Brazilian_Portuguese We can say that Brazilian Portuguese is a Portuguese dialect, however because there different meaning for some words, usually in software there are both languages. If you check your N9 language settings, you'll find both I think that is good idea keep both languages IMO. Regards