Yesterday Grooveannounced an enhancement to our partnership with Microsoft. We are building a tool set to integrate with SharePoint Team Services. This is exactly the kind of hybrid system I've been imagining. It combines the best of P2P with a client/server architecture. It will allow SharePoint users to work offline on SharePoint content, and to use the best of Groove's collaboration, ie. Groove's contextual communications tools. Some very exciting possibilities!
Congratulations to Jack Ozzie, Paresh Suthar and Phil Stanhope for pulling this together.