You can read what David is thinking here.
We have always believed in social learning rather than in the idea that HR or learning and development departments would end up “owning” enterprise social networks.
To that end we make a point of including core talent-related social affordances in our out-of-the-box offerings (learning and performance interest groups, forums, news, email, chat, file sharing, etc.) and supplying robust API libraries, including widgets, Google gadgets, macros and plugins for working nicely with clients’ enterprise social network choices, whatever they turn out to be.
We think of it as the good neighbor policy.