Exchange 2007 Service Pack 2 has been released!
I in particular have been waiting for this as transition from Exchange 2007 to Exchange 2010 and co-existence of both products in single environment requires Exchange 2007 servers running SP2.
If you missed it, it is documented by Exchange Team here in FAQs.
If you are like me, I am sure you can’t wait to download Exchange 2007 SP2. Well, wait is over. Head over to the following link and download it now. I already did!
Overview
Microsoft Exchange Server 2007 Service Pack 2 (SP2) has been designed specifically to help meet the challenges of any business and the needs of all the different groups with a stake in the messaging system. Exchange Server 2007 SP2 is a mission-critical communications tool that enables employees to be more productive and access their information anywhere and anytime while providing a messaging system that enables rich, efficient access to e-mail, calendar items, voice mail, and contacts. For the administrator, Exchange Server 2007 SP2 provides advanced protection options against e-mail security threats, such as spam and viruses, as well as the tools to help manage internal compliance and high availability needs. For an overview of the new features that are available in Exchange Server 2007 SP2, see "What’s New in Exchange Server 2007 SP2".