MTV Multiplayer writes: "Irrational Games finished the first "BioShock" in 2007. Since then, we haven't heard a peep from the Boston-based developer. After passing "BioShock 2" on to 2K Marin, many thought the "BioShock" brand had left Irrational and its creator, Ken Levine. Turns out, many were wrong. Irrational has been working on the next installment in the franchise, "BioShock Infinite," since 2008, and it's definitely not just another return to Rapture."