Today, Google formally unveils a new iPhone rival, the Nexus One (@googlenexusone), touted as a "superphone." Scoble is streaming it live on Ustream. Steven Levy reviews it in Wired. Here's Miguel Helft's analysis piece in the New York Times, rich with juicy, forward-thinking stats. Gizmodo's liveblog is here. Oh, look, so does gdgt. And Techcrunch, too. And Danny Sullivan at Search Engine Land. John Battelle weighs in here.