So what is this all about? As always, I have a theory.
I think this episode with Wiley and Apple's earlier legal attacks on people who it accused of leaking product information are part of a campaign to look tough to movie studios and record companies. As I've surmised before, Apple is trying to put together a high definition movie download service that requires content from all the major movie studios. If Steve looks soft on IP theft or unwilling to flex his corporate legal muscles, the studios may thing he won't adequately protect their corporate jewels.
And that's all it is. Steve couldn't care less about this book.