Ajax

- Ajax is restricted by Same Origin Policy
If application is running on http://domainA.com, it can't use Ajax to load its data from http://domainB.com because cross-domain ajax requests are prohibited by the browser (bowie: seems safari doesn't have such prohibitation).

Get around solution for Sencha touch, see another post http://bowiepoon.blogspot.com/2011/11/sencha-touch-load-json-data-from-server.html