Microsoft released Silverlight 2, its solution for the creation and delivery of applications and media experiences through a Web browser. Microsoft said Silverlight adoption continues to grow rapidly, with penetration in some countries approaching 50 percent and a growing ecosystem that includes more than 150 partners and tens of thousands of applications. 
"We launched Silverlight just over a year ago, and already one in four consumers worldwide has access to a computer with Silverlight already installed," said Scott Guthrie, corporate vice president of the .NET Developer Division at Microsoft.
New Silverlight 2 features include:
- .NET Framework support with a rich base class library. This is a compatible subset of the full .NET Framework.
- New built-in controls. These include DataGrid, ListBox, Slider, ScrollViewer, Calendar controls and more.
- Skinning and templating support. This makes it easy to customize the look and feel of an application.
- Deep zoom. This enables interactivity and navigation of ultrahigh resolution imagery.
- Expanded networking support. Out-of-the-box support allows calling REST, WS*/SOAP, POX, RSS and standard HTTP services, enabling users to create applications that easily integrate with existing back-end systems.
- Expanded .NET Framework language support. Unlike other runtimes, Silverlight 2 supports a variety of programming languages, including Visual Basic, C#, JavaScript, IronPython and IronRuby, making it easier for developers already familiar with one of these languages to repurpose their existing skill sets.
- Advanced content protection. This now includes Silverlight DRM, powered by PlayReady, offering content protection for connected Silverlight experiences.
- Improved server scalability and expanded advertiser support. This includes new streaming and progressive download capabilities, superior search engine optimization techniques, and next-generation in-stream advertising support.
- Expanded partner ecosystem. Visual Studio Industry Partners such as ComponentOne LLC, Infragistics Inc. and Telerik Inc. are providing products that further enhance developer capabilities when creating Silverlight applications using Visual Studio.
- Cross-platform and cross-browser support. This includes support for Mac, Windows and Linux in Firefox, Safari and Windows Internet Explorer.
