Exchange Server 2007 SP1 beta (Release Notes)
Hi,
In case you haven't noticed, the Exchange 2007 SP1 beta release notes are availble here:
On top of that it would seem that SP1 beta will be availabl on the April shipment of TechNet.
A summary is available here:
http://msgoodies.blogspot.com/2007/03/exchange-2007-sp1-beta-around-corner.html
Cheers
Nathan