It seems the orks just do not want to be kept at bay, and Ork Waaagh is just so overwhelming that it keeps jumping ahead of its release schedule.
A week ago, suddenly on the Black Library home page, the Ork codex went up early for pre-orders and for a lucky few, to purchase a full week early. Now another early release for the codex on itunes, has it that you can purchase your Enhanced Ipad Digital version of the Ork codex right now. This apparently went up on itunes late last night.
Perhaps 6 weeks of Orks were just too much holding back for the Waaagh.