I have used it in Turkey, UK, Netherlands, Oman, USA, Jordan, Panama, Dubai, Israel, Canada, Japan, and soon in Iceland. That's international right?
Bitcoin has not reached everywhere yet, especially in the interior part of the countries where there is no access to internet, so bitcoin is not international currency so far.
it should be called international digital currency, plus even if bitcoin hasnt reach every country the fact that it is being
used in countries that is accepting bitcoin makes it international.