In case you haven't seen this already....
Today at the Microsoft Management Summit the official name of the next version of Exchange Server, formally known as Exchange “12”, was announced – Exchange Server 2007.
During his keynote address at the event, Bob Muglia also demonstrated the Exchange Management Shell, a scriptable command line shell in Exchange 2007 as an innovative new application based on Windows PowerShell (formerly known as Monad).
Several of the key manageability features in Exchange Server 2007 will include:
For more information on the subject and also register for Beta 2 go here and here