Using XTempate with Sencha Touch 2
Ext.define('MyAPp.view.Login', {
    extend: 'Ext.Component',
    xtype: 'welcomeLogin',
    config: {
        html: 'This shows',
        tpl:   Ext.create ('Ext.XTemplate', '<div>Please show something</div>', {
            compiled: true
       })
     }

});

data: {}