Does there exist some framework for parallel editing XML-document on a web-page through AJAX?
I need a shared whiteboard, where I and other people can draw and see that draw others in real time ("live" mode).
Modern browsers support SVG, event-source and other useful things, and if such a framework exists, make such a board should simply.
If not, what are the implementation on Operational Transformation and what engines for parallel connection of several clients over HTTP is best to use?