void LoadData(TodoItem todo)
        {
            var list = new List <TodoItem> {
                Todo
            };

            Map.AddAnnotations(TodoAnnotation.FromList(list));
        }
        void LoadData()
        {
#if DEBUG
            // DEMO: in Seattle
            var coordinate = new CLLocationCoordinate2D(47.620422, -122.349358);
            var span       = new MKCoordinateSpan(0.00978871051851371, 0.00816739331921212);
            Map.Region = new MKCoordinateRegion(coordinate, span);
#endif
            var todos = AppDelegate.Current.TodoMgr.GetOrderedTodos().ToList();
            if (todos != null)
            {
                Map.AddAnnotations(TodoAnnotation.FromList(todos));
            }
        }