Make sure you watch this guy: http://www.youtube.com/watch?v=84zqbXUQIHc http://www.youtube.com/watch?v=84zqbXUQIHc (presentation at google). They developed a

Make sure you watch this guy: http://www.youtube.com/watch?v=84zqbXUQIHc http://www.youtube.com/watch?v=84zqbXUQIHc (presentation at google). They developed a lot of systems using OT, even going so far as doing collaborative autocad. There are papers on that if you search for CoMaya and CoAutoCAD. The complexity, especially of the last one, is mind boggling though.