Following the early tips of delays from GameStop and EBgames, Ryan Hamlyn the associate producer of SCEA has officially confirmed the delay in Playstation Blog:
"Wow, even I didn't see this one coming! Due to an extra step in QA testing to enhance the community features in the game, the release of LAIR, originally set for August 14th, has changed to September 4, 2007. Natural challenges that arose while finalizing the offline game to include key online features - such as leaderboards and medal systems - have led to the difficult choice of pushing back the release date. We appreciate everyone's excitement and patience for the game and look forward to its release on September 4."