As one of the initial OpenSocial "containers" or host sites, salesforce.com has been working closely with Google and our platform partners to rollout an initial set of tools, code and demos that allow developers to build social apps for the enterprise using the Force.com platform and OpenSocial APIs. We've decided to open-source the Apex container code on Google Code so the entire community can contribute improvements to it over time.

This is a reference implementation, and we expect that partners will extend it to meet their needs as they build out their OpenSocial applications