User blog comment:G0LD3NF1RE/Dawnguard encounters issues with Playstation/@comment-68.48.230.6-20120920234459/@comment-3202167-20120921174905

But we are not really sure what the actual problem is. I saw the talk about that before. A Obsidian developer who worked on the Gamebyro engine said that as a possibility. Tho, you still did not answer my question: How did they eventually make Skyrim work? and if that is truly the problem, they should have thought about that in the making of the engine.

PS: 720 may be out by next year, PS4 probably 2014-2015.