The Visual Studio team that brought you the SharePoint developer tools in Visual Studio 2010 is happy to announce they have created a set of power tools that make developing SharePoint 2010 sandboxed solutions even easier. 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 SharePoint 2010 sandboxed solution.
Sandboxed Compilation 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.
The Visual Studio 2010 SharePoint Power Tools are available immediately on the Visual Studio Gallery.