Animation director Jan-Bart Van Beek was on the said show, and confirmed the existence of the game. He also confirmed they are planning for a 2011 release, although it could be released in 2010. There is no pressure from SCEE to deliver the game for 2010 though, apparently.
Last month, it was reported that the game was in development in the US OPM.
Again, take with a very large pinch of salt. We’ll email SCEE about this one, and see what they have to say.