The AICPA has taken the authority on answering the questions many are asking regarding the newly introduced exam overseas.
Some of the main points you should know:
The international exam will be available starting the second half of 2011
Exams will only be given in English, regardless the location
Exams will be given only once within each testing window
The process remains about the same specific requirements that apply to international applicants (such as approval of educational credentials) must be addressed beforehand.
Locations of the exam can be found here and will be updated as more information becomes available.