I'm playing from the UK and don't get that kind of latency either, as other's have said it seems better than a connection to the wow eu servers. It can survive my wife's habit of downloading movies when i'm trying to play a lot better than wow as well.
As i tend to play during the day the downtime schedule they've chosen isn't ideal for me, but it's only a couple of hours and i'm fairly sure once things stabalise it'll go down to at most once a week. Sure there's been a few unexpected downtimes as well but to be honest with an MMO this new that's hardly surprising, and I'm enjoying the game enough that they don't bother me in the slightest (just as long as they don't go down when my wife want's me to put shelves up or something, cause then I can't claim i'm in the middle of something).
I've seen people speaking other languages in zone chat fairly frequently, but it wouldn't surprise me if a number of them have joined up various custom channels so they don't have to deal with the inevitable (and regrettable that people are like this) cries of "speak english". Maybe check the relavent sections of the forums to see if custom channels are being used?