Double double edit: I'm not sure what the problem was still, but it appears to have been fixed. I did a router restart [well, I shut it off for around thirty minutes anywa] and it's fixed. This may be a solution?
So, the game and the forums are down? Was there some announcement of oddly timed maintenance that nobody was told about?
I did manage to log in once, after about 5 mins of waiting at the connecting screen, but it only brought up the development realms and then wouldn't connect. >_>
Edit: It appears that even worldofwarcraft.com and blizzard.com are having XML problems as well?
Double edit: I did manage to 'log in' twice, but half the servers were missing and WoW crashed upon trying to connect to any of them.