Widescreen fix for the demo .... work in progress ... on the 2K Forums offers a homebrew workaround for widescreen issues in BioShock (story). There are fixes for the demo as well as the full game, but obviously nothing for the Xbox 360, which is going to require an official fix. As for the unofficial fix, this is obviously a use-at-your-own-risk type of deal, but the responses in the forum indicate that this has been working for people, though it seems it has been tricky for some Vista users (but it sounds like it works for them as well after a little work). Meanwhile, Ken Levine made a post to the 2K forums last night (thanks bit-tech.net) commenting on this widescreen issue:

Sorry about all the conflict. IG development people (specifically Chris and Rowan who are both on vacation) were trying to take a day off today (we've been working about six months 6-7 days a week). I'm trying to see what everybody's concerns are and consult with the staff.

I know people are frustrated, but we are dealing with internet time here. It wasn't until 7 pm EST that I was able to even talk to anybody in our Australian studio, which is open today (9 AM their time).

I hear you that not everybody was thrilled with the PC launch. And I'm trying to collect information and see what the facts are. PC game development does not function in a matter of seconds or hours, especially when most of the team is on vacation. But I hear you, and we're looking into the issue. I'll only ask you have a bit of understanding as to the time scale that software development issues must occur in.