Class Designer PowerToys for Visual Studio 2010 is released today! It provides a bunch of enhancements to Visual Studio 2010 Class Designe.
It has many cool features like pan/zoom window, floating properties window, fast navigation, etc. You could find the detailed feature list in its help document which is available on the desktop after the Class Designer PowerToys is installed.
Besides the binary, the source code is also available. You could extend the PowerToys easily.
This set of add-ins augments existing functionality in the Visual Studio Class Designer and the Distributed Systems Designers. It now supports Visual Studio 2005, Visual Studio 2008 and Visual Studio 2010. The Design Tools Enhancements add-in provides a common set of features that can be used by both the Class Designer and the Distributed System Designers, such as pan/zoom window and rich formatting commands. The Class Designer Enhancements add-in provides additional functionality for the Visual Studio Class Designer, such as HTML export and nested type creation commands. This download includes all necessary source code and a Visual Studio project template for creating your own add-ins for the Visual Studiodesigners. The Class Designer is a developer productivity tool available in Visual Studio Standard Edition and above, which allows developers to easily visualize, design, refactor, and document their code. The Distributed System Designers enable software architects, operations managers, and developers to visually design service-oriented solutions and validate them at design time against their operational environments. The Distributed System Designers are a core component of Visual Studio Team Edition for Software Architects and the Visual Studio Team System.