Interesting. I love using GhostDoc as it helps speed up my documentation efforts… I went to go download an older version for Visual Studio 2003 (for an older project I need to work on) and discovered that the Visual Studio extension has recently been acquired by a company called SubMain (much like Reflector was acquired by Red Gate).
SubMain has recently acquired GhostDoc. We will continue to maintain and distribute the product free of charge. We will be improving GhostDoc and we always welcome the community feedback. If you have ideas, please post them in the GhostDoc forum. Roland Weigelt is the original author of GhostDoc and his web site can be found at http://roland-weigelt.de/.
SubMain / GhostDoc - Simplify your XML Comments!