No doubt you've already begun hearing bits and pieces of the debate inspired in part by Chris Anderson's soon-to-be-released
Free: The Future of a Radical Price. Yesterday's blogosphere featured a couple interesting new takes. Malcolm Gladwell took a contrarian view and Seth Godin weighed in affirming the position. Interesting concept. Interesting discussion.
By the way, Tim Sanders tipped me off to the debate. If you're not subscribed to his blog you can get what you need right here.