Microsoft releases Sliverlight 2. The first release of Silverlight dates back over one year.
Silverlight is Microsoft's answer to Adobe's Flash and other web tools.
Silverlight 2 delivers a wide range of new features and tools that enable designers and developers to better collaborate while creating more accessible, more discoverable and more secure user experiences.

Microsoft also announced further support of open source communities by funding advanced Silverlight development capabilities with the Eclipse Foundation's integrated development environment (IDE) and by providing new controls to developers with the Silverlight Control Pack (SCP) under the Microsoft Permissive License. Silverlight 2 will be available for download on today here.
More details on the Microsoft Silverlight site.