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I'd like create a sub-module for this project for the 7.x version that integrates with nodejs through the Node.js Integration module: http://drupal.org/project/nodejs
The goal would be a scalable, real-time comment updates.
This sub-module would not add any other functionality in itself and would rely on the ajax_comments and nodejs modules.
This will take some time and there is a lot of other work do to on the 7.x version, but I'm opening this up now for anyone who wants to work on this, sub, or share ideas.