The moral decision I am referring to is whether we choose to use a pirate copy of the book.

"Our intellectual property system very desperately needs to be reexamined in light of the way technology is changing creative production"

I totally agree with you point. However, we do realize that legal system is always catching up to the real world. Before legal decision arrives, we need to decide ethically based on our judgement.

This is a model I learnt at uni on computer ethics. And I think it applies to most cases in technology field.