title: How can I write a plugin for VS2010 using MEF?
body: <p>I've seen lots of MEF code for plugging into custom apps, but I am yet to find out how to write a plugin for VS2010 using MEF. I was under the impression that the new IDE supported this. </p>
  
  <p>Does anyone know if this is supported 'out of the box', or does it require an install. Does anyone have any links, tips, etc to get me started.</p>