Pre-running button touch handling to prevent first touch delay

main.js

  // at the end of main.js...

  var buttonView = SC.ButtonView.create({
    layout: { left: -1000, width: 100, height: 24, top: 0 },
    didAppendToDocument: function() {
      var self = this,
          layer = this.get('layer'),
          params;

      params = {
        target: layer,
        pageX: -980,
        pageY: 10,
        screenX: -980,
        screenY: 10,
        clientX: -980,
        clientY: 10,
        preventDefault: function() {}
      };

      // simulate touchstart
      this.invokeLater(function() {
        SC.platform._simtouch_mousedown(params);

        // remove ourself
        self.invokeLast(function() {
          self.removeFromParent.call(self);
        });
      });
      
      return this;
    }
  });

  Sproutgap.getPath('mainPage.mainPane').appendChild(buttonView);