User blog comment:Olanov/Undead Nightmare Relased on PSN store./@comment-67.176.144.79-20101026232350

Listen up... Sony will be releasing DLC anywhere from 5pm - 9pm EST (That is Eastern Standard Time) Sometime during this time period the DLC will be released. Sony never gives an exact time because each update takes a different amount of time to upload to the main servers.