and learn WF4/WCF4 :)
VS 2010 Beta 1 has been put for download for MSDN subscribers and it is matter of hours to become available for public download (I will update the post once I have the link).
UPDATE: VS 2010 and .NET 4 Beta 1 is available for download.
Of course there are new things but looks like the focus is not on learning new ways to do old things but really make things easier. Takes a look at this nice story in pictures Developer Division GM Jason Zander posted.
The MSDN Code Gallery site has updated WF 4/ WCF 4 Training kit for all interested in bleeding edge features:
Introduction to Workflow 4 In this lab you will get to know the basics of creating, hosting and running a workflow. This lab is also intended to be an introduction to the new workflow authoring constructs in the .NET Framework 4 and Visual Studio 2010, including the new Workflow Designer, expressions, variables and arguments. Additionally, you will explore the use of some basic built-in activities.
Introduction to Workflow Services using .NET Framework 4 This hands-on lab is intended to introduce developers to writing workflow services using .NET Framework 4. You will examine the different messaging activities of Windows Workflow, and learn how to configure them to create a distributed application. This lab is built around a specific HR business scenario where candidates submit their applications and are hired or rejected based on an evaluation process.
Workflow Designer Programming Model This hands-on lab introduces you to the designer programming model of Windows Workflow 4. You will learn how to rehost the workflow designer in a WPF desktop application and how to create composite custom designers for your workflow activities.
Creating Flowchart Workflows This lab is intended to be an introduction to the Flowchart paradigm used in Workflow development. In this lab you will learn how to create Flowchart Workflows using the designer, and you will also learn the usage of several of the provided activities and how to create custom activities easily.
Monitoring Workflow Services using .NET Framework 4 During the life cycle of an application, developers and system administrators often need to monitor running services in order to perform health checks or troubleshoot issues. The Windows Communication Foundation (WCF) and Windows Workflow Foundation (WF) runtimes already come with a built-in tracking infrastructure, making it easy to enable monitoring within your WCF and WF applications. In this hands-on lab you will learn how you can leverage some of the main WF and WCF monitoring features to track application execution and troubleshoot problems with services when necessary.
WCF Service Discovery using .NET Framework 4 Windows Communication Foundation 4 includes a new feature that enables service discovery. Service discovery allows you to locate services on the same subnet using ad hoc discovery, or using a proxy to establish connections with servers regardless of where they are. In this lab you will create a simple chat application that will use both methods to learn about available services.