Rusty Russell: Free as in Market: Property and Liberty
The capitalists keep telling us that strong property rights are the basis of economic freedom, and intuitively people like owning stuff. This is a powerful argument for Free Software with their limits on IP powers, but for some reason it is usually used to argue for strong IP rights. Should be a fun talk.
Rusty Russell was IP Policy Adviser to Linux Australia, and has been a Linux kernel contributor for well over 10 years.