An interesting rumor regarding in-game voice chat on the PS3, as it has been reported recently that there is only one company that is preventing the release of this feature.
Full Story:http://www.product-reviews.net/2009/08/27/in-game-ps3-voice-chat-one-company-holding-back/

personally I don't see what the big deal is with this feature , but I know some of you are going nuts its not a feature yet .