If you followed the game at all, every single individual under the sun knew it was coming to 360 and PC. Everyone. Just because you personally put on some set of shady blinders to try to claim this was a mystery (and what a blow to PS3!) is irrelevant to the reality or Ubi's PR claims. Even IGN's own title and 1ups article on the subject made fun of the fact that this was the worst kept secret in the industry. The fact is, when they showed Project Assassin's originally, it was for 360 and PS3. When Ubisoft's internal documents leaked, Assassin's was for 360 as well. When it debuted at E3, the word still persisted - they might have said they're focusing on PS3, but everyone on earth knew otherwise.
So, I mean, you might try to utilize this as some magic evidence of Hiro's spectacular prediction powers but hey, I expect to be credited to. And so should the entire hardcore gamer community. We're waiting.