Update: More at Copyfight from Donna Wentworth.
Update: Groklaw reports from the hearing.
More: Briefs and audio of oral argument.
Update (June 21, 2005): Joe Gratz has downloadable MP3 version of oral argument.
More: After listening to the oral arguments, Infothought writes:
I think at the end it's just going to come down to whether the judges believe public policy should support such reverse-engineering rights or not. And the track-record for that sort of determination is not good.