I so see bitcoin as a global currency already, as i can travel almost all countries and i will find an atm or a local trader to exchange my bitcoins for local currency. If i dont wanna those i can get a debit card and spend my bitcoins, i do believe those card does work as others cards. Besides that anyone can send any ammount between countries without problems, people does consider bitcoin a currencie as well a payment processor already, isnt recognized from the countries yet.