The presentation focuses on Rails scaffolding as a good starting point for playing with Ext. The biggest integration task from a Rails point of view is providing the correct JSON data structures that Ext can process - a task that can be solved in a re-usable way. Passing data around between Rails controllers and views and the actual JavaScript code is another focal point. The presentation features
![Rails GUI Development with Ext JS](https://cdn-ak-scissors.b.st-hatena.com/image/square/f57398263257d77a6354aa779b010ea911fbdc28/height=288;version=1;width=512/https%3A%2F%2Fcdn.slidesharecdn.com%2Fss_thumbnails%2Frails-gui-development-with-ext-js-1199833881154604-3-thumbnail.jpg%3Fwidth%3D640%26height%3D640%26fit%3Dbounds)