tooltip does not work with chart

[shydreamz]

in Ext.chart.series.series class we have properties as tips which as per description say it with display a tooltip but no tip tool is displayed.
when i digged into touch-chart, sencha-touch-debug js i found no such code for tooltip.
are we supporting it in chart2, or cant directly copy the Ext.tip code into sencha-touch , will it work

series: [{
                type: 'column',

                xField: 'name',
               	yField: ['2008'],
                axis: ['left'],
                showInLegend: true,
                tips: {
		          trackMouse: true,
		          width: 140,
		          height: 28,
		          renderer: function(storeItem, item) {
		          	
//calculate and display percentage on hover
		            var total = 0;
store.each(function(rec) {
		                total += rec.get('data1');
		            });
this.setTitle(storeItem.get('name') + ': ' + storeItem.get('2008'));
		          }
		        },
                
		interactions: [{
                    type: 'panzoom',
                    axes: ['bottom']
                }]

[mitchellsimoens]

I'm thinking that was documentation that shouldn't be there. There is no tooltip class in Sencha Touch.