Are you going to transition your library's Facebook page to the new timeline format? What about your personal page? We know corporations will have to but what about other kinds of institutions? Will they have the time to devote to this change and will it matter to their customers/patrons? All that is a decision that will have to be made but, if history teaches us, when a technology "vendor" introduces a new way, it may not be long before it's the "only" way.