Google now has two recent examples of how not to launch a product. To be more specific, the launches of Wave and Buzz are unfortunate illustrations of product management and product marketing breakdowns. The first, Wave, was clearly a product marketing failure. Whether or not Wave is a work of sublime genius is beside the point. The dominant reaction to Wave was confusion. Was Wave more an application or a platform? A replacement for e-mail, or a supplement to it? Something built for a general audience, or just techies? Google somehow fumbled the most basic product marketing: We built this...