Use showPagingControl:true. Otherwise, if the user tries navigating with the trackball the app will crash.

If you want to get the current page just after switching to a new view touchend event will only cause the actual swipe to never occure.. try getting it with a setTimeout in the scroll event. Something like that:

setTimeout(function(e)
{
var current_page = scrollView.currentPage;
current_page++; 
//do what you need to do with it
},500);

Try avoiding the control for the moment, on slower devices it's reaaally slow…