It seems that the rules have changed a bit when it comes to the Diablo 3 beta sweepstakes. It seems that instead of sending 2000 beta keys on December 12, they will be sending 200 keys each Monday (until December 12).
If you are already playing the Diablo 3 beta, congratulations! If not, maybe today is your lucky day. The beta invites will be sent out today, so keep your fingers crossed.
