Silverlight 4, Office 2010 Beta Highlight Keynotes at PDC

Here are the headlines from keynotes this morning at Professional Developers Conference (PDC09).
Silverlight 4 Announced
Scott Guthrie announces the public beta of Silverlight 4, only four months after delivering Silverlight 3. The beta can be downloaded at http://www.silverlight.net/getstarted/silverlight-4-beta.
Guthrie noted that the newest version of Silverlight includes features such as these:

Extended out-of-browser capabilities to enable deeper desktop experiences without additional code or runtimes
Powerful enhancements for enterprise application developers, including full support for Microsoft Visual Studio 2010, providing access to Microsoft Office and Microsoft SharePoint Server, and improved printing, networking, reporting and charting capabilities
Richer Web experiences, including new webcam and microphone capabilities, native multicast support for wide-scale media content delivery, and more than 60 customizable controls to build compelling, interactive applications
The Silverlight 4 Training Course includes hands-on-labs, a video and a whitepaper designed to help you learn about the new features in Silverlight 4 focusing on three major areas: Enabling Business Application Development, Empowering Richer Experiences and Moving Beyond the Browser. Some of the new highly anticipated features include Printing, WebCam and Microphone support, custom right-click, rich text, HTML support and access to local files with trusted applications.
Windows 7 Opportunities
Steven Sinofsky profiles how developers can take advantage of the unique software and hardware innovations fueled by Windows 7 and Internet Explorer 8 to build compelling computing experiences for customers. Sinofsky also shared an early look at some of the work under way on Internet Explorer 9, highlighting advancements in performance and interoperable standards, as well as advancements such as using DirectX to bring the full power of the PC to the Web experience.
Public Availability of Office 2010
Kurt DelBene announces the release of the public betas of Microsoft Office 2010, Microsoft SharePoint Server 2010, Microsoft Visio 2010, Microsoft Project 2010, Microsoft Office Mobile 2010 and Office Web Apps for business customers. The 2010