Google's plan to bulldoze Madison AvenueGoogle advertising exec Tim Armstrong wore a smile and told those gathered at the American Association of Advertising Agencies yesterday how his company planned to destroy them. The weapon? A dashboard. With it, Armstrong said, buyers will be able to manage TV, radio print, search and display campaigns. Sounds like most of what a media buyer does. But don't fret, Madison Avenue. Your Terminator from the future won't arrive for some time yet. Or at least no sooner than any other vaporware like Android, OpenSocial, and Google Health.