BioShock on the 360 does and the answer is ... well, it's kind of pedestrian. Straight from 2K's corporate hive mouth: "Update improves stability when loading autosaves and overall game stability, corrects audio during title menu loading, and addresses AI behaviors regarding use of health stations." ... "Plasmid Pack 1" it is not.
So there you go. If you've been having a problem with one of the issues being addressed, this is probably a godsend, if not, you're probably already skipping down to comments to type an ever-increasing row of "zzzz"s. Have fun with that.