White Paper: Continuous Replication Deep Dive
It was released a white paper about the Continuous Replications in the Exchange Server documentation site. If you like to understand how the Exchange replication really works this document is totally worth it.
This white paper provides the technical details for a technology in Microsoft Exchange Server 2007 called continuous replication.
Read it here: http://technet.microsoft.com/en-us/library/cc535020(EXCHG.80).aspx