Examples used on extdesenv.com demonstrating Ext JS, Sencha Touch, and other Sencha related technologies.
From license.txt
Copyright 2012, Bruno Tavares
You are free:
to Share — to copy, distribute and transmit the work
to Remix — to adapt the work
to make commercial use of the work
Under the following conditions:
Attribution — You must attribute the work in the manner specified by the
author or licensor (but not in any way that suggests that they
endorse you or your use of the work).
http://creativecommons.org/licenses/by/3.0/
Also check http://sencha.com/license for Sencha Ext JS and Touch licenses