It looks like Google may be gearing up to offer even more social data in Google Analytics than originally thought.
WebSonic posted the actual slide, revealing the news. It says the feature is "coming soon":
Last month, Google announced that it would soon be releasing new social reports in Google Analytics. Google said the reports were aimed at helping users: identify the full value of traffic coming from social sites and measure how they lead to conversions, understand social activities happening on and off site to help you optimize user engagement and increase key performance indicators, and make better, data-driven decisions in your social strategies.
There is a Social Sources report and an activity stream, which does include data from a lot of places, but lacks some key social sites like Facebook, Twitter, Pinterest, LinkedIn and StumbleUpon.