Example of how you might use dojo/on with esri/map to handle multiple click events on the map with ArcGIS JavaScript API 3.3.

eventedmapdemo.js

// Purely sample
// Just demonstrates how you may use the dojo/on method
// with the map click and other click events

define('identifyHandler', ['dojo/on', 'esri/tasks/identify'], function(on) {

  var _idhandler = function(map) {
		
		var task = new esri.tasks.IdentifyTask('url');
		var idparams = new esri.tasks.IdentifyParameters();
		idparams.tolerance = 3;
		idparams.layerOption = esri.tasks.IdentifyParameters.LAYER_OPTION_ALL;
		// callback train, yeah yeah, it's a sample, jeez
		this.handler = on.pausable(map, 'click', function(e) {
		
			// blah blah, set up your Identify Parameters
			var deferred = task.execute(idparams);
			deferred.then(function(){
				// blah blah, do something
			});
		
		});
		
	};
	
	return _idhandler;

});

define('mapView', ['dojo/connect', 'identifyHandler', 'esri/map', 'esri/toolbars/draw'], function(connect, IdHandler) {

	var _mapview = function() {
	
		var self = this;
		this.start = function() {
		
			self.map = new esri.Map('map');
			/**
			do a bunch of map stuff
			**/
			
			connect.connect(self.map, 'onLoad', function() {
			
				// initialize my little identify helper module
				var identify = new IdHandler(self.map);
				
				/**
				Now, let's say you have a drawtool that will add points
				to your map for some reason. A common problem is you can add the point,
				but the map click to add a point also triggers the identify.
				Easy way to handle this now...
				**/
				
				var drawTool = new esri.toolbars.Draw(map);
				/** draw nonsense stuff here somewhere **/
				connect.connect(someButton, 'click', function() {
				
					drawTool.activate(esri.toolbars.Draw.POINT);
					// now pause the identify map click
					identify.handler.pause();
					
				});
				
				connect.connect(drawTool, 'onDrawEnd', function(geom) {
				
					drawTool.deactivate();
					// turn the identify back on
					identify.handler.resume();
				
				});
				
			});
		
		};
	
	};
	
	return _mapview;

});