MS 终于发布了Silverlight 2的正式版， http://silverlight.net 从和 Silverlight 1 比较中看, Silverlight 2 增加了诸多新特性：

Support for Visual Basic.NET and C#; Common Language Runtime (CLR) based languages  
Support for IronPython, IronRuby, Managed JScript, and other Dynamic Language Runtime (DLR) based languages  
Rich Core Framework (e.g. Generics,  collections)  
MultiThreading  
Layout controls including StackPanel and Grid  
Full suite of Controls (TextBox, RadioButton, Slider, Calendar, DatePicker, DataGrid, ListBox, TabControl, and others)  
Managed Control Framework  
Templating Model  
Visual State Manager  
Isolated Storage  
Deep Zoom Technology  
Media – DRM Powered by PlayReady  
Media  Windows Media Audio 10 Professional support  
Media  MediaStreamSource for managed code media file parser and protocol extensibility  
High quality resizing  
Media  Basic SSPL Support  
Cross Domain Network Access  
Easy access to serverside data via Web Services  
Direct access to TCP sockets  
Interoperability with SOAP and REST services, including support for XML, JSON, RSS and Atom data formats  
LINQ (including LINQ to XML, LINQ to JSON, and LINQ to Entities)  
Duplex communications (“push” from Server to Silverlight client)  
Data Binding  
ADO.NET Data Services  
Managed HTML Bridge  
Managed Exception Handling  
.NET Framework Security Enforcement  
Type Safety Verification  
XMLReader/Writer  
Enhanced Keyboard Input Support  
File Upload Support (via WebClient API)  
WPF Compatibility
Accessibility  
Localization  
Remote Debugging (PC and Mac)