Some PS3 players were not happy when it was announced that Xbox 360 would get the Hearthfire DLC for The Elder Scrolls V: Skyrim before they got their version of Dawnguard. Now Bethesda has admitted that the problems it is having with the PS3 version of the vampire lord DLC may not be fixable.
In a post on the official Dawnguard forums, Bethesda admitted that the huge amount of resources needed for such a large add-on as Dawnguard has made the "issue" one that is difficult to solve, despite numerous attempts. The post didn't elaborate on what the exact problems were, but it concluded: "This is not a problem we’re positive we can solve, but we are working together with Sony to try to bring you this content. We wish we had a more definitive answer right now. We understand the frustration when the same content is not available on all platforms. When we have an update, we will certainly let you know."
It is likely that Dawnguard is suffering from the same issues that plagued the PS3 version of Skyrim after it launched. Bethesda has said that the development of Hearthfire has not further delayed Dawnguard on PS3.