It's fine you don't believe Beiswenger's claim, but it will be up to Ubisoft's legal team to show development actually began prior to January 2003 and that the intent was to create the animus, et al, without having knowledge of Beiswenger's book. Jade Raymond claims 2004 is when development started, yet you are claiming 2002. Why the disparity?
Whether you want to admit it or not, there are many similarities between the book and the games, almost too many to believe it is mere coincidence.
I find it telling that you disbelieve Beiswenger, for seemingly petty reasoning. It stands to reason that a person who isn't an avid gamer probably will not know anything about AC games other than the title names themselves. Aside from that, nothing in the trailers elude to the many of the details mentioned in the plaintiff's complaint.
What irritates me about the case so far is that a bunch of snotnosed gamers decided to give the author a "taste of his own medicine" by rating down his novel on Amazon. There were comments ranging from, "We will teach him not to fuck with us gamers," to "He doesn't know who he's messing with." Really, the guy is going through the court system and they decide to take mob measures. I say let it play out in court. I doubt this will have any effect on AC3's dev cycle.