diff --git a/dist/amd/can-simple-map.js b/dist/amd/can-simple-map.js
new file mode 100644
index 0000000..af83b36
--- /dev/null
+++ b/dist/amd/can-simple-map.js
@@ -0,0 +1,78 @@
+/*can-simple-map@3.2.0-pre.0#can-simple-map*/
+define(function (require, exports, module) {
+    var Construct = require('can-construct');
+    var canEvent = require('can-event');
+    var canBatch = require('can-event/batch');
+    var assign = require('can-util/js/assign');
+    var each = require('can-util/js/each');
+    var types = require('can-types');
+    var Observation = require('can-observation');
+    var SimpleMap = Construct.extend({
+        setup: function (initialData) {
+            this._data = {};
+            this.attr(initialData);
+        },
+        attr: function (prop, value) {
+            var self = this;
+            if (arguments.length === 0) {
+                Observation.add(this, '__keys');
+                var data = {};
+                each(this._data, function (value, prop) {
+                    Observation.add(this, prop);
+                    data[prop] = value;
+                }, this);
+                return data;
+            } else if (arguments.length > 1) {
+                var had = this._data.hasOwnProperty(prop);
+                var old = this._data[prop];
+                this._data[prop] = value;
+                canBatch.start();
+                if (!had) {
+                    canEvent.dispatch.call(this, '__keys', []);
+                }
+                canEvent.dispatch.call(this, prop, [
+                    value,
+                    old
+                ]);
+                canBatch.stop();
+            } else if (typeof prop === 'object') {
+                Object.keys(prop).forEach(function (key) {
+                    self.attr(key, prop[key]);
+                });
+            } else {
+                if (prop !== 'constructor') {
+                    Observation.add(this, prop);
+                    return this._data[prop];
+                }
+                return this.constructor;
+            }
+        },
+        serialize: function () {
+            var serialized = {};
+            Observation.add(this, '__keys');
+            each(this._data, function (data, prop) {
+                Observation.add(this, prop);
+                serialized[prop] = data && typeof data.serialize === 'function' ? data.serialize() : data;
+            }, this);
+            return serialized;
+        },
+        get: function () {
+            return this.attr.apply(this, arguments);
+        },
+        set: function () {
+            return this.attr.apply(this, arguments);
+        }
+    });
+    assign(SimpleMap.prototype, canEvent);
+    var oldIsMapLike = types.isMapLike;
+    types.isMapLike = function (obj) {
+        if (obj instanceof SimpleMap) {
+            return true;
+        }
+        return oldIsMapLike.call(this, obj);
+    };
+    if (!types.DefaultMap) {
+        types.DefaultMap = SimpleMap;
+    }
+    module.exports = SimpleMap;
+});
\ No newline at end of file
diff --git a/dist/cjs/can-simple-map.js b/dist/cjs/can-simple-map.js
new file mode 100644
index 0000000..88811d2
--- /dev/null
+++ b/dist/cjs/can-simple-map.js
@@ -0,0 +1,76 @@
+/*can-simple-map@3.2.0-pre.0#can-simple-map*/
+var Construct = require('can-construct');
+var canEvent = require('can-event');
+var canBatch = require('can-event/batch/batch');
+var assign = require('can-util/js/assign/assign');
+var each = require('can-util/js/each/each');
+var types = require('can-types');
+var Observation = require('can-observation');
+var SimpleMap = Construct.extend({
+    setup: function (initialData) {
+        this._data = {};
+        this.attr(initialData);
+    },
+    attr: function (prop, value) {
+        var self = this;
+        if (arguments.length === 0) {
+            Observation.add(this, '__keys');
+            var data = {};
+            each(this._data, function (value, prop) {
+                Observation.add(this, prop);
+                data[prop] = value;
+            }, this);
+            return data;
+        } else if (arguments.length > 1) {
+            var had = this._data.hasOwnProperty(prop);
+            var old = this._data[prop];
+            this._data[prop] = value;
+            canBatch.start();
+            if (!had) {
+                canEvent.dispatch.call(this, '__keys', []);
+            }
+            canEvent.dispatch.call(this, prop, [
+                value,
+                old
+            ]);
+            canBatch.stop();
+        } else if (typeof prop === 'object') {
+            Object.keys(prop).forEach(function (key) {
+                self.attr(key, prop[key]);
+            });
+        } else {
+            if (prop !== 'constructor') {
+                Observation.add(this, prop);
+                return this._data[prop];
+            }
+            return this.constructor;
+        }
+    },
+    serialize: function () {
+        var serialized = {};
+        Observation.add(this, '__keys');
+        each(this._data, function (data, prop) {
+            Observation.add(this, prop);
+            serialized[prop] = data && typeof data.serialize === 'function' ? data.serialize() : data;
+        }, this);
+        return serialized;
+    },
+    get: function () {
+        return this.attr.apply(this, arguments);
+    },
+    set: function () {
+        return this.attr.apply(this, arguments);
+    }
+});
+assign(SimpleMap.prototype, canEvent);
+var oldIsMapLike = types.isMapLike;
+types.isMapLike = function (obj) {
+    if (obj instanceof SimpleMap) {
+        return true;
+    }
+    return oldIsMapLike.call(this, obj);
+};
+if (!types.DefaultMap) {
+    types.DefaultMap = SimpleMap;
+}
+module.exports = SimpleMap;
\ No newline at end of file
diff --git a/dist/global/can-simple-map.js b/dist/global/can-simple-map.js
new file mode 100644
index 0000000..5afd62c
--- /dev/null
+++ b/dist/global/can-simple-map.js
@@ -0,0 +1,193 @@
+/*[global-shim-start]*/
+(function(exports, global, doEval){ // jshint ignore:line
+	var origDefine = global.define;
+
+	var get = function(name){
+		var parts = name.split("."),
+			cur = global,
+			i;
+		for(i = 0 ; i < parts.length; i++){
+			if(!cur) {
+				break;
+			}
+			cur = cur[parts[i]];
+		}
+		return cur;
+	};
+	var set = function(name, val){
+		var parts = name.split("."),
+			cur = global,
+			i, part, next;
+		for(i = 0; i < parts.length - 1; i++) {
+			part = parts[i];
+			next = cur[part];
+			if(!next) {
+				next = cur[part] = {};
+			}
+			cur = next;
+		}
+		part = parts[parts.length - 1];
+		cur[part] = val;
+	};
+	var useDefault = function(mod){
+		if(!mod || !mod.__esModule) return false;
+		var esProps = { __esModule: true, "default": true };
+		for(var p in mod) {
+			if(!esProps[p]) return false;
+		}
+		return true;
+	};
+	var modules = (global.define && global.define.modules) ||
+		(global._define && global._define.modules) || {};
+	var ourDefine = global.define = function(moduleName, deps, callback){
+		var module;
+		if(typeof deps === "function") {
+			callback = deps;
+			deps = [];
+		}
+		var args = [],
+			i;
+		for(i =0; i < deps.length; i++) {
+			args.push( exports[deps[i]] ? get(exports[deps[i]]) : ( modules[deps[i]] || get(deps[i]) )  );
+		}
+		// CJS has no dependencies but 3 callback arguments
+		if(!deps.length && callback.length) {
+			module = { exports: {} };
+			var require = function(name) {
+				return exports[name] ? get(exports[name]) : modules[name];
+			};
+			args.push(require, module.exports, module);
+		}
+		// Babel uses the exports and module object.
+		else if(!args[0] && deps[0] === "exports") {
+			module = { exports: {} };
+			args[0] = module.exports;
+			if(deps[1] === "module") {
+				args[1] = module;
+			}
+		} else if(!args[0] && deps[0] === "module") {
+			args[0] = { id: moduleName };
+		}
+
+		global.define = origDefine;
+		var result = callback ? callback.apply(null, args) : undefined;
+		global.define = ourDefine;
+
+		// Favor CJS module.exports over the return value
+		result = module && module.exports ? module.exports : result;
+		modules[moduleName] = result;
+
+		// Set global exports
+		var globalExport = exports[moduleName];
+		if(globalExport && !get(globalExport)) {
+			if(useDefault(result)) {
+				result = result["default"];
+			}
+			set(globalExport, result);
+		}
+	};
+	global.define.orig = origDefine;
+	global.define.modules = modules;
+	global.define.amd = true;
+	ourDefine("@loader", [], function(){
+		// shim for @@global-helpers
+		var noop = function(){};
+		return {
+			get: function(){
+				return { prepareGlobal: noop, retrieveGlobal: noop };
+			},
+			global: global,
+			__exec: function(__load){
+				doEval(__load.source, global);
+			}
+		};
+	});
+}
+)({},window,function(__$source__, __$global__) { // jshint ignore:line
+	eval("(function() { " + __$source__ + " \n }).call(__$global__);");
+}
+)
+/*can-simple-map@3.2.0-pre.0#can-simple-map*/
+define('can-simple-map', function (require, exports, module) {
+    var Construct = require('can-construct');
+    var canEvent = require('can-event');
+    var canBatch = require('can-event/batch/batch');
+    var assign = require('can-util/js/assign/assign');
+    var each = require('can-util/js/each/each');
+    var types = require('can-types');
+    var Observation = require('can-observation');
+    var SimpleMap = Construct.extend({
+        setup: function (initialData) {
+            this._data = {};
+            this.attr(initialData);
+        },
+        attr: function (prop, value) {
+            var self = this;
+            if (arguments.length === 0) {
+                Observation.add(this, '__keys');
+                var data = {};
+                each(this._data, function (value, prop) {
+                    Observation.add(this, prop);
+                    data[prop] = value;
+                }, this);
+                return data;
+            } else if (arguments.length > 1) {
+                var had = this._data.hasOwnProperty(prop);
+                var old = this._data[prop];
+                this._data[prop] = value;
+                canBatch.start();
+                if (!had) {
+                    canEvent.dispatch.call(this, '__keys', []);
+                }
+                canEvent.dispatch.call(this, prop, [
+                    value,
+                    old
+                ]);
+                canBatch.stop();
+            } else if (typeof prop === 'object') {
+                Object.keys(prop).forEach(function (key) {
+                    self.attr(key, prop[key]);
+                });
+            } else {
+                if (prop !== 'constructor') {
+                    Observation.add(this, prop);
+                    return this._data[prop];
+                }
+                return this.constructor;
+            }
+        },
+        serialize: function () {
+            var serialized = {};
+            Observation.add(this, '__keys');
+            each(this._data, function (data, prop) {
+                Observation.add(this, prop);
+                serialized[prop] = data && typeof data.serialize === 'function' ? data.serialize() : data;
+            }, this);
+            return serialized;
+        },
+        get: function () {
+            return this.attr.apply(this, arguments);
+        },
+        set: function () {
+            return this.attr.apply(this, arguments);
+        }
+    });
+    assign(SimpleMap.prototype, canEvent);
+    var oldIsMapLike = types.isMapLike;
+    types.isMapLike = function (obj) {
+        if (obj instanceof SimpleMap) {
+            return true;
+        }
+        return oldIsMapLike.call(this, obj);
+    };
+    if (!types.DefaultMap) {
+        types.DefaultMap = SimpleMap;
+    }
+    module.exports = SimpleMap;
+});
+/*[global-shim-end]*/
+(function(){ // jshint ignore:line
+	window._define = window.define;
+	window.define = window.define.orig;
+}
+)();
\ No newline at end of file