Fallout 3 DLCs to be Substantial

Describing the Fallout 3 Xbox360/GFW-exclusive DLCs to videogaming247, Pete Hines compares the plans to Oblivion's Knights of Nine.
(I couldn't even tell you right now what the DLC would be, but our plans are for substantial stuff,) [Pete Hines] said. (The equivalent of things like Knights of the Nine for Oblivion, where it provides many hours of gameplay, not just a one-off thing of an item (or items) or a hangout, or things like that.)

Todd Howard used the word (substantial) to describe the additional content at E3, where he also said it would be 360-exclusive. Hines told us, though, that the PC version would be getting the DLC as well.