You've probably already heard about Live Mesh but you may not know that there is a tech preview available. Take the tour to learn more before trying it out. Certainly an interesting way to synchronise and share files between your computers and with your friends. A college pointed out that Apple have a similar system called MobileMe. I wonder whether Live Mesh uses an operational transform to enable group editing of mesh documents? Changes to documents are synchronised using FeedSync, which is an extension of RSS and Atom.