Sony's Peter Dille has now been so kind as to provide us with an eleventh. Speaking with Gamasutra, Dille was asked what the deal was with Konami casting some doubt on the title's exclusivity just before E3.
"There was something that came out prior to (the Sony E3 keynote) announcement. Our folks have talked to the Konami folks, and until the announcement was out from our side, I think they were being a little bit cagey. But the agreement calls for exclusivity, the announcement's been made, and now people know the real story"