The official Darksiders forum, the patch for tearing on the Xbox 360 version should be out today.
Xbox 360 users, we’re pleased to announce that a patch for the screen tearing issue experienced by some gamers will be available on Wednesday around 2am PST! Just fire up the game and the download will start automatically if you are connected to Xbox Live.
This is a good turnaround to get the patch out. Be sure to get it if you have Darksiders.