From the news thread...

Quote Originally Posted by Xiahou View Post
Not to be a party pooper, but Obsidian doesn't really have a good track record does it? They kind of have a reputation for getting farmed out sequels to games and turning them into disappointments....

KOTOR2 was a good game, but unfinished and ultimately disappointing compared to the first. NWN2, to me at least, was an unplayable mess when it first came out. Two expansions later and I hear its finally starting to come together, but I've stopped caring.

I'd love to be proven wrong, but when I hear Obsidian is getting to do another sequel to a different devs game, its more likely to elicit a sigh from me than excitement.
I think the key is that both KOTOR2 and NWN2, even with their OOB problems, had interesting storylines and well-written dialog. These are often the areas in which Bethsoft has difficulties, especially since they enacted their 100% voice acting thing and the subsequent 50,000 line limit in the games. I'm hoping that Obsidian can stick a strong story on Bethsoft's otherwise strong software. IMO, since Obsidian probably doesn't have to worry about software issues or the game being rushed out the door, FO:NV has a lot of potential.