Silverlight 4 Beta was recently unveiled at the PDC in Los Angeles (http://microsoftpdc.com), continuing the rapid pace of innovation for the Silverlight platform.  In addition, ASP.NET MVC Beta 2 was released, which introduces improved Visual Studio tooling support, extensible client validation and lots of other features that help developers build Web sites and applications faster.

 Silverlight

Silverlight helps companies design, develop and deliver engaging, interactive user experiences for Web, desktop and mobile applications when online of offline.  Silverlight is a free plug-in, powered by the .NET Framework compatible with multiple broswers, devices and platforms.  With printing support, rich reporting and charting, and integration with back-end systems and server products including Microsoft Sharepoint Server 2010, Microsoft Office and Microsoft Internet Information Services (IIS), the Silverlight 4 Beta delivers a full suite of powerful features to application developers, bringing innovative platform capabilities to browser-based experiences.

For more information, see http://www.silverlight.net/getstarted/silverlight-4-beta/

ASP.NET MVC

ASP.NET MVC is a free, fully supported framework that enables developers to quickly build standards-based, SEO-riendly Web sites by offering complete control over the HTML and URLs.

For more information, see http://www.asp.net/mvc