Thomas Klausner covered his fishnet top and spoke about Using use. A neat talk, as it picks a very small part of perl: "use" and goes into great detail about how it works and how you can exploit it for fun things. From the simple "use Foo;" to "use Foo 1.34;" to "use Foo qw(blop);" to importer, caller and more. I hadn't heard of rlib before. Also, he had good metasyntactics...
