Дополнительная информация:
Compelling Experiences
Engage users longer and make the most of your content with interactive features and high-definition streaming video delivered through live and on-demand IIS Smooth Streaming.
Build user “buzz” and differentiate yourself with innovative capabilities, such as Deep Zoom and Pivot, which push the boundaries of interactivity and data visualization, and provide new ways to present your brand.
Silverlight enables Web-based applications to deliver the business functionality users demand with a modern, efficient UI while securely interacting with desktop files, devices, data and applications such as Microsoft Office.

Powerful Technology
Build on Microsoft’s industrial-strength application development tools and a platform that promotes stability, scalability, reliability, and performance.
Deliver engaging experiences through all major browsers on Mac, Windows, and Linux client operating systems, mobile devices such as Windows Phone 7, Nokia Series 60 and set top boxes.
Extend browser experiences to the desktop and devices with innovative tools, servers and frameworks.

Enhanced Results
Grow your business, your productivity, and your profitability with technology and tools that deliver exceptional value and accommodate the business model that fits your company best.
Call on millions of existing developers and thousands of businesses already familiar with .NET development to help create and deploy Silverlight applications.
Create rich Web-based applications that quickly integrate with your existing back-end systems. Easily enhance existing Web and SharePoint sites by incrementally adding Silverlight components.

Что нового:
Microsoft SilverlightTM Release History