Licensing clarifications for SCR, CCR, and LCR

I had a question last week during Exchange Connections that I wanted to make sure I properly clarified regarding Exchange 2007 Enteprise Edition server.

Enterprise Edition is only required for "failover clustering" meaning Clustered Continuous Replication (CCR) or Single Copy Clustering (SCC) and/or if you need more than five mailbox databases on a single server. It is NOT required for Local Continous Replication (LCR).

No licensing decisions have been made about the target server for the new Exchange 2007 SP1 feature Standby Continuous Replication, however it is a good guess that the SCR target server will require Enterprise Edition if it hosts more than five databases or if it will need to be part of a cluster once the administrator initiates a fail-over.