Coming off the back of their annual social intranet conference, the ThoughtFarmer guys have announced the release of ThoughtFarmer 5. This release includes a new mobile-optimised version and an improved API.
I haven’t played with the mobile version yet, but it looks well executed. I’m also really interested in the Integration Kit (TIK). No social intranet exists in a vacuum, so the ability to extend and customise ThoughtFarmer means you can use it as a true social workplace platform.