Uhm currently NC-Soft is running the closed Korean beta. There have been 3 Beta-Weekends where some lucky testers could play for about 10 hours. There is no official releasedate for any open beta. Hopefully NC Soft announces a date soon but honestly I don't think it will be soon. There will be a european closed beta as soon as possible, i think around january or feburary, but there are no further details.
So you gotta wait