Well considering how there have been hundreds of import players playing the japanese game from all over the world, then I'ld say yes it's quite possible. Probally best to go to www.ffxionline.com on all the details on how to play the North American release elsewhere in the world as I'm not sure of all the details. But luckily since Square did a good job getting the game to work well you won't experience too much lag with the large distance between you and the servers.

And also Omecle, he's talking about the North American release, the North American servers are here, not Japan, it would be ludicrious to keep them there when we need them here to even run the game.