Yesterday Microsoft announced the timeline for Silverlight 5 in 2011 at the Silverlight FireStarter event. Silverlight 5 will be in beta the first half of 2011 and ship early in the second half of 2011. Developers quickly began posting impressions and many questions.
Silverlight 4 was released back in April without essential development tools.Recently it was announced that Silverlight 4 Tools for Visual Studio 2010 is ready. In addition to basic Silverlight 4 support and templates for RIA Services, there are many IDE enhancements to make working with Silverlight, WPF, and XAML easier.