You can clone with
HTTPS or Subversion.
Sencha Touch 2 MVC Hello World
Overview of Sencha Touch and the Kent Mobile App, this is Sencha Touch 1 but "clean" MVC architecture.
SproutCore vs. Sencha
Taking Sencha Touch apps offline, how to use the cache manifest to cache files + local storage.
Sencha Touch Commander 2, interesting project supposed to help in deploying applications and creating new classes (views, models...).
Sencha Touch / Leaflet, supports offline but made for Sencha Touch 1.1.
"Sencha Touch 2 Enterprise app" (demo)
Sencha's official blog post on theming
Example of app with theming using SASS (SASS)