The debate over the "Inducing Infringement of Copyrights" bill tends to be conducted in terms of abstractions and hypotheticals. But in her recent testimony to the Senate Judiciary Committee, Register of Copyright Marybeth Peters summed up some of the specific concrete acts engaged in by P2P networks that are designed to encourage and facilitate copyright violations. See particularly pages 16-20.

As she notes, a bill directed at these patterns of behavior that are obviously designed to foster copyright violations really does not present significant threat to honest developers of technology.

I started to quote it, but there were too many good parts. So read the whole thing.