The CTP version of SQL Server 2008 Service Pack 2 (SP2) is now available. You can use these packages to upgrade any of the following SQL Server 2008 editions:
Enterprise
Standard
Evaluation
Developer
Workgroup

SQL Server 2008 SP2 CTP contains the cumulative updates up to SQL Server 2008 SP1 cumulative update package 8, and fixes to issues that have been reported through our customer feedback platforms. These include supportability enhancements and issues that have been reported through Windows Error Reporting.

What's New:

SQL Server Utility
The SQL Server 2008 R2 Utility supports SQL Server 2008 instances that have SP2 installed. The SQL Server Utility models SQL Server-related entities in a unified view. Utility Explorer and SQL Server Utility viewpoints in SQL Server Management Studio provide administrators a holistic view of resource health through an instance of SQL Server that serves as a utility control point (UCP). For more information about the SQL Server Utility, see Managing the SQL Server Utility.
Data-tier Applications
SQL Server Management Studio in SQL Server 2008 R2 supports all data-tier application (DAC) operations for SQL Server 2008 instances that have SP2 installed. DAC is an entity that contains all databases and instance objects used by an application. A DAC provides a single unit for authoring, deploying, and managing the data-tier objects instead of having to manage them separately. A DAC allows tighter integration of data-tier development with the development of the associated application code. It also gives administrators an application level view of resource usage in their systems through the utility control point. For more information about data-tier applications, see Understanding Data-tier Applications.

Reporting Services in SharePoint Integrated Mode (Feature Pack)
The Microsoft SQL Server 2008 Service Pack 2 (SP2) Reporting Services Add-in for Microsoft SharePoint Products 2007 allows you to connect to SQL Server 2008 R2 Report Servers. The new features include:
Improved handling of credentials and shared data sources.
Utilization of the existing instances of Report Builder configured on the Report Server.
Support for Report Part Gallery, shared datasets, and shared report items.
Report Builder 3.0
ATOM feed renderer. For more information, see the ‘Rendering Reports to Data Feeds’ section in "What's New in SQL Server 2008 R2".

Note: While this version of the add-in supports SQL Server 2008 Report Servers, the new features are only supported when connecting to SQL Server 2008 R2 report servers. Please note that installation of the 2008 SP2 add-in is not supported on SharePoint 2010 Products.

These packages have been made available for general testing purposes only. Do not deploy the CTP software in production. Peer-to-peer support is available in the SQL Server 2008 forums.