2K Boston's Job Listings on Gamasutra offer some hints as to what's going on at the BioShock developer, where it sounds like they are working on an Unreal Engine 3 game that will include multiplayer support. The listing for a Lead Multiplayer Engineer, for instance, mentions, "backend support for an action-packed AAA multiplayer title," and: "Responsible for delivering a robust, scalable, and responsive multiplayer gameplay code and backend services for the PC, PS3, and Xbox 360 platforms." Thanks Mike Martinez and 1Up.