War for Cybertron Moved to May?

For a while now the Amazon and Gamestop sites for Transformers: War for Cybertron has listed the game's release date as June 22nd, 2010. However, according to Joystiq that date may have been moved to May. During "an investor conference call following the release of the company's latest financial results, Activision Publishing CEO Mike Griffith mentioned that ...star vehicle / vehicle star Transformers: War for Cybertron were due some time in May 2010." No exact date was provided and it is possible his notes were incorrect. To my knowledge the company has not yet released anything official about the game's release date, what information we have is based on Amazon (who tends to be accurate) so we will have to wait until then for confirmation.