Blizzard understands how torturous the wait till the 15th of May could be for some die-hard Diablo fans which is why they’ve decided to allow everyone to experience Diablo III this weekend. As long as you have a Battlenet account, you can download the Diablo III client and partake in the festivities when they kick off this Friday and go on all the way till Monday. Best of all, you can download the beta client right now.
For the horde
The whole point of this exercise is to stress test their servers and to make sure things run smoothly. But do remember this is a beta at the end of the day so you may encounter issues. For more on the beta, we suggest you read their FAQ page as well.