VS 2010 and .NET 4.0

While looking for new features in VS 2010 and .NET 4.0, we came across the following set that helps us  in Project execution:
Managed Extensibility Framework
The Managed Extensibility Framework (MEF) is a new library in the .NET Framework 4 that helps you build extensible and composable applications. MEF enables you to specify points where an application can be extended, to expose services to offer to other extensible applications and to create parts for consumption by extensible applications. It also enables easy discoverability of available parts based on metadata, without the need to load the assemblies for the parts. Check Managed Extensibility Framework Overview and Managed Extensibility Framework. For a list of the MEF types, see the System.ComponentModel.Composition namespace.
Parallel Computing

The .NET Framework 4 introduces a new programming model for writing multithreaded and asynchronous code that greatly simplifies the work of application and library developers. The new model enables developers to write efficient, fine-grained, and scalable parallel code in a natural idiom without having to work directly with threads or the thread pool. The new System.Threading.Tasks namespace and other related types support this new model. Parallel LINQ (PLINQ), which is a parallel implementation of LINQ to Objects, enables similar functionality through declarative syntax. See Parallel Programming in the .NET Framework.

ASP.NET

• Core services, including a new API that lets you extend caching, support for compression for session-state data, and a new application preload manager (autostart feature).
• Web Forms, including more integrated support for ASP.NET routing, enhanced support for Web standards, updated browser support, new features for data controls, and new features for view state management.
• Web Forms controls, including a new Chart control.
• MVC, including new helper methods for views, support for partitioned MVC applications, and asynchronous controllers.
• Dynamic Data, including support for existing Web applications, support for many-to-many relationships and inheritance, new field templates and attributes, and enhanced data filtering.
• Microsoft Ajax, including additional support for client-based Ajax applications in the Microsoft Ajax Library.
• Visual Web Developer, including improved IntelliSense for JScript, new auto-complete snippets for HTML and ASP.NET markup, and enhanced CSS compatibility.
• Deployment, including new tools for automating typical deployment tasks.
• Multi-targeting, including better filtering for features that are not available in the target version of the .NET Framework.