I just wanted to throw in my observation on DLC issues that appear to occur with Bethesda games. I have not played any DLC for Skyrim on the PS3 obviously, but I have purchased and played all of the DLC released for Oblivion, Fallout 3 and Fallout NV.
A general observation on Bethesda games is that they all seem to get slower with extended play. Patches would help this but only for newly created games. DLC added to the base would pretty much always break the game and make it unplayable, especially in the new area, where framerates would grind to a halt. Again, creating a new game would completely fix the problem and I could visit the new areas with smooth framerates. This wasn't just limited to the first few hours of play. I could level a character to max and only experience minor slowdown.
When I hear that Skyrim is having problems with DLC, this isn't a surprise to me. I was expecting it. I know Skyrim is a completely new graphics engine, but I suspect that Bethesda programmers use the same file architecture they have always used for sorting data, objects, textures, etc. What does surprise me is that they have not gotten a handle on the problem yet.
The guys at Obsidian seemed to finally find a good workaround. Their final DLC seemed to make the game very stable. Has anyone talked to them yet?
BTW, I am fine with starting a new game if that will work for Skyrim too. Just release it with a disclaimer and take my money!