When we launched SocialPoint on Monday, I had a chance to sit down with Sam Ramji of Microsoft. A video of the conversation and Sam's thoughts are on Port 25.
Even more interesting to me given my role at Microsoft is that Socialtext has built a Sharepoint integration ("Socialpoint"). This gives Sharepoint users access to a best-of-breed wiki and blogging engine while retaining presence, Office integration, and a unified portal infrastructure. My inner geek got going when Ross described the new protocol handler they’ve built - "socialpoint:foo/bar" - for navigating within Sharepoint across wikis. I think this is a good example of how Microsoft platform software should be combined with open source applications. We continue to invest in scaling the infrastructure, and open it up to developers for innovative applications that can change as often as customers require.