Microsoft announced today that it is adding the ability for multiple authors to simultaneously edit Word documents on SkyDrive using the Word Web App. Imagine sitting at a mediation, working on part of a settlement MOU while someone back at your office edits or adds content to some other part of the document. You could even quietly collaborate on a settlement agreement with opposing counsel so that you had a long form agreement ready for signatures right there. Crazy. Microsoft has been slow to refocus on new areas of competition, but it is building a head of steam with Google in its sights.