RfTouch - Sencha Touch 2 library
Currently offers a ReloadStore, which help automating retries on remote services. This is probably mostly useful when packing your Sencha Touch product inside a native app.
Upcomming: RfMap, and Ext.Map that handles connectivity problems.
Download the RfTouch folder, and put it inside your project. Add the project to the loader and start using the library like any other Sencha Touch 2 code.
For an example of the usage please read RfTouch sees light and take a look at the tests, which also show the usage. A JsDuck documentation is on it's way.