Here's a sad, familiar tale: Assassin's Creed 2, a major multiplatform release, has seen its PC version delayed. Not the console versions, just the PC one.
A short statement from Ubisoft says the delay is to ensure "a bit more time for the dev team to deliver the best quality game to you".
All well and good considering the problems that plagued the PC release of the first Assassin's Creed, but still a little disappointing.
UPDATE: Just to add that it's been delayed to the "first quarter of 2010."