I guess, and it is just a guess, that this commitment to Live Sync / SkyDrive means that the technology behind Live Mesh will be incorporated into these services instead of Live Mesh launched as a separate service.  That would make sense to me.  Make Live Mesh Devices "Ring" into Live Devices.  Integrate Live Mesh Apps & Storage into Live SkyDrive.  And incorporate Live Mesh's syncing/collaborative technology into Live Sync.