..and the much awaited announcement is finally here! Silverlight 4 was announced by Scott Guthrie at DevConnections!
Here are some important links:
Creating Silverlight 4 applications
Here are some tools you will need to create Silverlight 4 applications:
Note: If you have installed Silverlight 4 Beta/RC on your machine, then you have to uninstall the “Update for Visual Studio 2010 (KB976272)” from Add/Remove Programs before installing Silverlight Tools RC2.
What’s New in Silverlight 4
Here are some links that will get you started with Silverlight 4
60 minute keynote about Silverlight 4 by Scott Guthrie(@scottgu)