Holla is a group chat app. The UI is built in a RIA fashion - i.e. is totally asynchronous and super fast. I've open sourced it for a book I'm writing on building Rich Internet Applications with JavaScript.

Try it out in your browser (Chrome optimized) - http://getholla.com

• Ruby 1.9.2
• Bundler
• Redis
• Mysql

• bundle install
• rake db:create
• cat db/development_structure.sql | rails dbconsole
• start redis
• rails server thin
• start the Juggernaut server - http://github.com/maccman/juggernaut

Now go to http://localhost:3000/register