The Silverlight 1.1 Alpha includes all the features available in Silverlight 1.0 Beta plus a number of new features focused primarily on improving the developer productivity and power, including:

► Managed code support

► Support for dynamic languages including managed Microsoft JScript and Python

► Rich UI control model based on WPF

► Improved networking stack with support for REST, RSS, JSON, and POX

► Enhanced, two-way HTML/AJAX bridge

► Comprehensive and consistent base class library

► Support for LINQ (LINQ to Objects, LINQ to XML)