You can find more information on the speaker's site:
One of the weirder corners of perl is your ability to put arbitrary hooks inside @INC. I'll quickly cover a few things you can do with this technique, and cover a few of the pitfalls associated with it.
Attended by: Thomas Klausner (domm), David H. Adler (dha), Brock Wilcox (awwaiid), Stevan Little (stevan), Zak Zebrowski, John Anderson (genehack), Nick Patch (patch), Chas. Owens (cowens), Morty Abzug, Graham Ollis (plicease), Kennedy Clark, Stephen Belcher,