The official ILM site has just been updated with a link to a behind the scenes look at their work on Pearl Harbor. You'll be able to watch plenty of before and after shots of ILM's work on the film.
Just go to the main site and be sure to be a Pearl Harbor background on the main page and look for the link which takes you to a Disney site for Oscar promotion. Or if not here it is readily available:
There are shots representative from the work on the film: The Battle of Britain, the transformation of Battleship Row, Doolittle's Attack and the Pearl Harbor attack, including the two amazing extended flybys.
Thanks to Mr. J for the very early pointer.