Earlier today Super_Secret, who has been correct about almost every piece of information regarding PS3 firmware updates, posted up a thread on the N4G forums where he explained that there was one company the was holding back the release of a universal custom soundtrack support and in-game voice chat support on the PlayStation 3.
He mentioned that this company wasn't Activision, but didn't mention any specifics on which company he was talking about. Later on he posted the following as clue:
Well PS3Center managed to decipher this code as it was encoded in Base 64 and translates to:
"It's not Activision. It's not Ubisoft. It's not Capcom. It's not Insomniac. It's not Konami. It's not Take 2. It's not Midway. It's not Squaresoft. are wE All getting the picture yet? One point I want to reiterate - there's a difference between the games that didn't work with in-game XMB and the games that DID work with in-game XMB but DIDN'T work well with custom soundtracks, so stop picking out the ones that simply didn't do in-game XMB. Also, it wasn't just ONE game that caused this, either. Although one title does come to mind and it wasn't even what you or I would call a "Big" game. I'll give you a hint: HPatOofP."
HPatOofP can only be one game, Harry Potter and the Order of the Phoenix, which is published by EA. So is EA really blocking an essential feature from 24 million users?