Visual Studio 2010 SharePoint Power ToolsThe Visual Studio 2010 SharePoint Power Tools is a set of templates and extensions that provides additional functionality to SharePoint developers who use the SharePoint developer tools in Visual Studio 2010. Below is the list of features included in the current release of the power tools.
Sandboxed-compatible Visual Web Part
This item template enables you to use a visual designer to create SharePoint web parts that can be deployed in a sandboxed solution for SharePoint 2010.
This extension displays build errors when you use types or members in a SharePoint 2010 sandboxed project which are not allowed in the SharePoint sandbox environment.