I use the api's documentation a lot (sencha touch / extjs) and there is something that is really isnt practical in terms of user experience. The title of any component is always the last keyword of the namespace, so let's say Ext.form.Panel or or Ext.Panel (sencha touch 2.1) is open, the title of the tabs will say 'Panel'. There should be something to differentiate classes with the same last keyword... like that it would be more practical, my 2 cents.