Fully supported by Visual Studio and Expression Blend, highlights of new features and functionality of Silverlight 3 include: major media enhancements, out of browser support allowing Web applications to work on the desktop; significant graphics improvements including 3D graphics support, GPU acceleration and H.264 video support; and many features to improve RIA development productivity.
Also, in order to fully integrate all the .NET developer tools, Visual Studio 2010 will support a fully editable and interactive designer for Silverlight.
Microsoft is going to host an online version of Silverlight 3.0 with Microsoft Expression 3.0 launch will be held at www.seethelight.com, which is set to online on July 10, 2009, the original launch date for Silverlight 3.0.
Experience Smooth Streaming
The Silverlight browser plug-in allows you to see Smooth Streaming in action on this page. (If Silverlight is not installed, please install it when prompted.) If the Internet bandwidth and video rendering capability on your playback device are sufficiently high, you'll experience high-definition video playback of the sample content. You will also be able to simulate end user experiences under varying conditions by simulating drops and recoveries in bandwidth. If your actual bandwidth is below 3 Mbps, or your playback device is video-challenged, then you will experience the adaptive nature of Smooth Streaming without needing to simulate a bandwidth cap. www.iis.net.