Has anyone used ExtJS with Drupal? Is there any module for Drupal that supports Ext JS? If so, what are steps to get it work? I'm wondering if there is any feasibility of creating an Ext based drupal theme.
There is just a module that integrates Ext in Drupal that I know of: the Ext module.
Note: A new version of this module is being developed to provide relatively comprehensive integration functions with Ext 4.x (currently 4.1). For details please see http://drupal.org/node/1316616.
The module doesn't have a version for Drupal 7, though.