Take Control 7.x-2.1 doesnt work with ext-4.0.2a

As written on http://drupal.org/project/take_control:

Please note that both Drupal 6 and Drupal 7 versions of this module use ExtJs 3. The module would work with any version of ExtJs 3.x but would not work with ExtJs 4.x.

It would be great if this module worked with ExtJs 4.x .
Otherwise you need to install either ExtJs 3.x or both library versions at the same time. Thank you !