Way to go Lotus Connections
These CIO.com articles provide a good background of what the two biggest in the software industry are providing:
Understanding Lotus Connections, IBM's Version of Web 2.0 For The Enterprise
Understanding Microsoft SharePoint in a Web 2.0 World
Lawrence Liu's (Microsoft's SharePoint Senior Technical Product Manager), Tweet on how the face-off went is a good concession and shows that we are headed in the right direction.