IGN has an interview with Cliff Bleszinski, design director for Epic Games, in which he discusses the achievements and unlockable content in Gears of War 2. He mentions that the game won't be getting a PC version
as its predecessor did. Gamasutra has a related interview with Epic's Rod Fergusson, who talks at length about developing the new game
after experiencing the popularity of the old one, and how he manages the franchise's growth into other forms of media. He also explains the decision-making process behind issuing Title Updates.