Unfortunately I can't link directly to the audio. You can subscribe to Bookworm in iTunes (and I highly recommend it). You can listen from this KCRW link to the Gibson interview page.
Spook Country (Putnam)
What's happened to William Gibson? Along with the most sophisticated future-predictions, speculations about the sociology of cities, and adventures in virtual post-realities, he has finally learned how to get his characters from one room to another. We explore this accomplishment (in which he takes a good deal of pride)