As an author I don't worry about digital piracy. It seems like a pointless battle, and I have too many other things to worry about that are within my control. The author JA Konrath is conducting an experiment to see if he can prove piracy doesn't really affect books sales. It will be interesting to see how it plays out.
http://jakonrath.blogspot.com/2010/0...his-ebook.html
L.J.