Introduce Yourself : Anyone work with writing partners? by Guy Goldstein (WriterDuet.com And ReadThrough.com)

I'm the creator of www.WriterDuet.com, a free real-time collaborative screenwriting program. You and as many writers as you want to (privately) invite can work on a script simultaneously, instantly seeing all changes. WriterDuet also provides video and text chat, notes, specific-scene editing, and many other features. Let me know what you think!