Since I just got the Bourne Conspiracy on PS3, I figure I may as well poll the (recent) movies. I loved the whole series, it's tough to chose for me, but I think Ultimatum is the better one.
Unlikely. Books 'officially' ended at three (despite a 4th being released by Eric Van Lusbunder(sp) and he tied up the loose ends in the movie. However Bourne could be a James Bond type franchise if they so choose. But I doubt it.