Microsoft has rolled out a series of 6 videos showing the key OCS R2 features and the value those bring to customers. Check them out at TechNet Edge:
Due to the short release cycle and the compressed milestones that come from it, there is no Office Communications Server 2007 R2 public beta for partners or customers. However, partners will be able to download the RTM version as soon as it becomes available.
· There is no price change from OCS 2007 to OCS 2007 R2.
· Customers who purchase OCS 2007 with Software Assurance (SA) will be entitled to OCS 2007 R2.
· Customers who purchase OCS 2007 R2 with SA also get downgrade rights.