Microsoft has released the R2 edition of SQL Server 2008.

You can download it from:

Microsoft SQL Server 2008 R2 – Management Tools

Microsoft SQL Server 2008 R2 Management Studio Express (SSMSE) is an integrated environment for accessing, configuring, managing, administering, and developing all components of SQL Server Express.

Microsoft® SQL Server® 2008 R2 End User License Agreements

The Microsoft SQL Server 2008 R2 End User License Agreements provide the legal terms and conditions for using the SQL Server 2008 R2 core software

Microsoft SQL Server 2008 R2 – Express

Microsoft® SQL Server® 2008 R2 Express is a powerful and reliable data management system that delivers a rich set of features, data protection, and performance for embedded applications, lightweight Web Sites and applications, and local data stores.

SQL Server Modeling CTP Nov 2009 Release 3 (formerly “Oslo”)

SQL Server Modeling (formerly code name "Oslo") is a set of future technologies that provide significant productivity gains across the lifecycle of .NET applications by enabling developers, architects, and IT professionals to work together more effectively with SQL Server at the center of the application lifecycle.

Microsoft SQL Server 2008 R2 Evaluation : Trial Experience for IT Professionals

Download SQL Server 2008 R2 180-day Trial Software. Building on SQL Server 2008, R2 provides an even more scalable data platform with comprehensive tools for managing your databases and applications, improving the quality of your data, and empowering your users to build rich analyses and reports using tools they are already familiar with.

Microsoft® SQL Server 2008 R2 Evaluation : Trial Experience for Developers

Download SQL Server 2008 R2 180-day Trial Software. Building on SQL Server 2008, R2 provides an even more scalable data platform with comprehensive tools for managing your databases and applications,improving the quality of your data, and empowering your users to build rich analyses and reports using tools they are already familiar with.

Microsoft SQL Server2008 R2 RTM – Express with Advanced Services

Microsoft® SQL Server® 2008 R2 Express is a powerful and reliable data management system that delivers a rich set of features, data protection, and performance for embedded applications, lightweight Web Sites and applications, and local data stores

SQL Server Driver for PHP 2.0 CTP

Download the SQL Server Driver for PHP v2.0 CTP1 to enable a PHP application to use the PDO (PHP Data Objects) API for using SQL Server for data storage