Ok, so it's kind of non-news, but Todd Howard's done an interview with Next Generation and mentions Fallout 3,
1. I'm currently working on...
Another big-open-world RPG. We’re still in preproduction building our
first playable of the game and it’s very exciting for us. This is the
most fun part of a project.
There's not really anything in the interview though there are lots of plugs for how good the Xbox is. I guess you'd expect that on a site called Next Generation.