Exchange Server 2010 Service Pack 2 (SP2) is available for download. The latest SP includes functionality that is aimed at helping users navigate and manage their cloud-on-premises hybrid environments.
The newest SP adds new protection and compliance tooling; additional deployment options; and the return of Outlook Mobile Access (OMA). SP2 also includes a new hybrid configuration wizard, which, as Softpedia explained, can help automate “the setup of a hybrid connection between Exchange Online running in Office 365 and an on-premises Exchange 2010 organization.”
Exchange 2010 SP2 is supported on Windows 7 Professional 64-bit, Windows Server 2008 R2 SP1, Windows Server 2008 R2 Standard, Windows Server 2008 Standard.
Exchange 2010 SP2 isn’t the only Microsoft offering that bridges the cloud-on-premises gap. Microsoft is in the midst of a strategy shift in terms of how it intends to encourage customers to move from private to public clouds, officials have said recently.
What's New in Exchange 2010 SP2: http://technet.microsoft.com/en-us/library/hh529924.aspx
Released: Exchange Server 2010 SP2: http://blogs.technet.com/b/exchange/archive/2011/12/05/released-exchange-server-2010-sp2.aspx