Microsoft has secured Skyrim’s first two DLC packs as timed exclusives for the Xbox 360. As with most of Microsoft’s timed exclusives, the two DLC packs will be available on PS3 and PC 30 days after the initial release.
Presumably, any additional DLC will be released simultaneously on all three platforms. No other details were given about the DLC by Microsoft or Bethesda. Elder Scrolls V: Skyrim hits stores in November.