Yes, and Wave is probably the most accurate open source picture of what Google is using for Docs: http://incubator.apache.org/wave/ http://incubator.apache.org/

Yes, and Wave is probably the most accurate open source picture of what Google is using for Docs: http://incubator.apache.org/wave/ http://incubator.apache.org/wave/ OT works naturally with linear data structures, but is tougher to use correctly with more complex data, which Mozilla seems to have here with Towtruck. I'm excited to see what approach they choose!