http://nw.perfectworld.com/

Neverwinter Nights online is in open beta. I watched a live demo of the game a month or so ago on Twitch.tv and got an early key. Unfortunately I wasn't able to get past Perfect World's registration system to ever log into Neverwinter. The livestream was impressive enough.

Here are some live streams and recordings to check out.
http://www.twitch.tv/directory/game/Neverwinter