Kinda. VS2010 has a new, WPF-based shell/editor. That brings along many new .NET-based integration points and mostly obsoletes the old editor APIs. They've als

Kinda. VS2010 has a new, WPF-based shell/editor. That brings along many new .NET-based integration points and mostly obsoletes the old editor APIs. They've also improved the plugin-loading architecture and several other things. However, do do any meaningful integration, you still need to code to the poorly documented COM APIs. The project system, for example, hasn't changed much at all since VS 6.