Yahoo CEO Marissa Mayer took center stage during yesterday’s IAB MIXX conference in NYC. Interviewed by The Slate Group chairman and editor in chief Jacob Weisberg, Mayer stayed on message, touting Yahoo’s capabilities as a mobile company and its focus to “inform, connect and entertain” its users.“Today, we really want to be the mobile guide,” said Mayer, claiming her company is still in the midst of a renaissance.Mayer offered a laundry list of Flurry stats, the mobile analytics company Yahoo acquired in July of last year, noting that 90 percent of the time spent on smart devices is spent in apps, with 50 percent of the time in apps split between messaging or entertainment apps. She also said, there are 280 million “mobile addicts” in the world – users who interact with apps more than six times a day.“Apps are really where the heat is,” said Mayer. She said Yahoo sees 600-million active mobile users a month.When it comes to mobile revenue, Mayer said she believes native ads are the …