Hideo Kojima just said it on the Tokyo Game Show livecast. Not sure if any of you care, but I did found that interesting.
Was it just this one mention, or did Kojima go into detail? Do you have a link to a video or stenograph or something? (Note: I have yet to play that game, so :/ )
They streamed it via uStream and I was watching it with members of my Metal Gear fansite in a chatroom. One of our members knows Japanese but isn't that great with it so it could be a mistake, but it doesn't seem farfetched seeing as Metal Gear Solid started as a 3DO game and the final and complete version of Policenauts was released on the Saturn. The uStream channle doesn't have it archived which annoys me because someone on our forums who is a professional translator missed out on it. As for ZOE, I own it but I never got into it. Everyone has told me that the sequel blows it out of the water but it's a rare PS2 title. Luckily they're re-releasing both for the PS2/360/Vita. They should have a stream dedicated to ZOE soon. Should be boradcasted on Konami's uStream channel. UPDATE: The professional translator caught the second broadcast and he confirms this.