It seems to be down, and seeing as it's five AM in Sweden, I wouldn't expect it to be back up for another four hours or so, so you may as well go to sleep, or read a book, or probably go back to playing World of Warcrack.
Well, I don't think quantity was really the problem. Have at a guess there was never more than 100 people on it at one time. I think it's more time and the overall betaness of the system. It will get better as we go along. :)