
Those interested in this might also find my article "There's No Such Thing as a Free Patent" of interest, plus my Austrian Scholars Conference 2008 Rothbard Memorial Lecture, "The Intellectual Property Quagmire, or, The Perils of Libertarian Creationism" (originally titled "Rethinking IP Completely"), which is online. Here's the audio, the video, and the accompanying Powerpoint presentation (PPT, 32 MB; PDF version, 51 MB). The Google Video version is now available; embedded version below.
These and other material are available on my website.