Silverlight Development

On November 18, 2009, at the Professional Developer’s Conference in Los Angeles, Microsoft Corp. unveiled a Beta version Silverlight 4. This latest version delivers hundreds of features and controls that, when combined with the continued innovation in Microsoft’s world-class tools for designers and developers
Printing Support: Comprehensive printing that enables hardcopy reports and documents as well as a virtual print view, independent of screen content.
New Controls: A full set of form controls with over 60 customizable, styleable components. New controls include RichTextbox with hyperlinks, images and editing and Masked textbox for complex field validation. Enhanced controls include DataGrid with sortable/resizeable columns and copy/paste rows.
Internationalization: Localization enhancements with Bi-Directional text, Right-to-Left support and complex scripts such as Arabic, Hebrew and Thai and 30 new languages.
CLR Enhanced: The .NET Common Runtime (CLR) now enables the same compiled code to be run on the desktop and Silverlight without change.
Well there is more to write on the list of features that this beta version has. Do not foreget to read all the features of Silverlight Development at http://silverlight.net/getstarted/silverlight-4-beta/