It has been announced that Microsoft will be releasing the next beta of Silverlight (2.0) in Q1 of 2008. This Beta would support a Go-Live license that would enable developers to begin building and deploying Silverlight 2.0 applications.

Some of the new .NET specific features in the next public Silverlight preview will include:

• WPF UI Framework: The current Silverlight Alpha release only includes basic controls support and a managed API for UI drawing.  The next public Silverlight preview will add support for the higher level features of the WPF UI framework.  These include: the extensible control framework model, layout manager support, two-way data-binding support, and control template and skinning support.  The WPF UI Framework features in Silverlight will be a compatible subset of the WPF UI Framework features in last week’s .NET Framework 3.5 release.

• Rich Controls: Silverlight will deliver a rich set of controls that make building Rich Internet Applications much easier.  The next Silverlight preview release will add support for core form controls (textbox, checkbox, radiobutton, etc), built-in layout management controls (StackPanel, Grid, etc), common functionality controls (TabControl, Slider, ScrollViewer, ProgressBar, etc) and data manipulation controls (DataGrid, etc).

• Rich Networking Support: Silverlight will deliver rich networking support.  The next Silverlight preview release will add support for REST, POX, RSS, and WS* communication.  It will also add support for cross domain network access (so that Silverlight clients can access resources and data from any trusted source on the web).

• Rich Base Class Library Support: Silverlight will include a rich .NET base class library of functionality (collections, IO, generics, threading, globalization, XML, local storage, etc).  The next Silverlight preview release will also add built-in support for LINQ to XML and richer HTML DOM API integration.

via:http://weblogs.asp.net/joshuajohnson/archive/2007/11/29/silverlight-2-0-beta.aspx