Microsoft Silverlight is a cross-browser, cross-platform, and cross-device plug-in for delivering
the next generation of .NET based media experiences and rich interactive applications for the Web. Silverlight 2 beta includes innovative new features like Deep Zoom,
more than 40 new controls and a rich .NET base class library of
functionality.
For a look at some of the applications using Silverlight check the following -
Silverlight ShowcaseSilverlight 2 Beta