World of Warcraft Patch 1.4

Blizzard has updated World of Warcraft to version 1.4 with today's patch, which introduces the PvP honor system and several new content features. There are patch notes on the official site, but like many of the game servers, it appears to be down at the moment. They are also posted on WorldofWar.net. The in-game patcher may be a little slow right now too, so you may want to grab the patch from FileFront, FilePlanet, FileShack, or Gamer's Hell. Note that the incremental patch (v1.31 to v1.4) is much smaller than the full v1.4 patch, which updates the game from a fresh install.
Forum: World of Warcraft - What's your take on the new honor system?