At the rate things are going, someone will figure out a software algorithm that will write our stories for us. Until then, there are tools cropping up to take some of the pain out of an editor's pain-dense life.
Textflow is the latest example. Lifehacker's Adam Pash describes this new tool as a "word processor with a new and innovative take on document collaboration. Rather than offer real-time updates when multiple users are working on a document like Google Docs, Zoho Writer, or previously mentioned Gobby, TextFlow imports multiple Microsoft Word documents, analyzes all of the differences, and provides robust tools for merging, accepting, or rejecting any of the changes therein by a master editor."
As far as I can tell, it's just a modified version of a tool that software coders have been using for years for version control/error reduction.
Best of all, it's free for download at the Textflow site.
Check out the video for a better sense of it: