Ezio's nemesis Dr. Vidic is apparently an avid Facebook user.
May 3, 2010 - We know the next Assassin's Creed will be an intermediary episode picking up where the second one left off and will see Ezio returning as the lead character. Anyone who played the first two games will remember Dr. Vidic, the evil Knights Templar member that heads up research on the Animus project. He made a swift getaway at the end of Assassin's Creed II but has resurfaced to post a message on the official Assassin's Creed Facebook page (Dr. Vidic is very hip to social networking).
"It is the time of our rising. A new age enters and a great battle looms. Templar destiny is at hand and waiting for you. - Dr. Vidic"
What is the good doctor going on about? Chances are very good that we'll find out next month at E3.