I just wanted to take a moment to thank you developers for this awesome plugin! It works fantastically for my network of sites, which are basically local design news editions unified by a main site. I was using the multi-post MU plugin, which worked reasonably well for awhile, but essentially created independent duplicates and was often very time consuming when it came to dealing with thumbnail images and when an edit was required. This plugin is truly single entry, helps drive comments to the local sites (which I want), relieves stress about the SEO implications of duplicates, and does not split the comments between main and local (child). I am so grateful for this plugin! It took me awhile to get my head around it and a little more detailed up-front documentation (for the layperson blogger) would alleviate you of some of the more remedial questions but the function of this plugin is truly amazing (especially when coupled with functions.php mod that passes through the thumbnails)!