diff --git a/pzero.js b/pzero.js
deleted file mode 100644
index f404941..0000000
--- a/pzero.js
+++ /dev/null
@@ -1,210 +0,0 @@
-;(function(root) {
-
-var proto, pzero;
-var _IS_VALUE = '[object pzero]';
-
-pzero = function() {
-    return new proto._create();
-};
-
-proto = pzero.prototype = {
-
-    /**
-     * Initializes promise
-     */
-    _create: function() {
-        this._is = _IS_VALUE;
-
-        this._rejected = false;
-        this._resolved = false;
-
-        this._onReject = [];
-        this._onResolve = [];
-    },
-
-    /**
-     * Resolves promise with value
-     *
-     * @param {Object} value
-     */
-    resolve: function(value) {
-        if (this._rejected || this._resolved) {
-            return;
-        }
-
-        var callback;
-
-        this.value = value;
-        this._resolved = true;
-
-        while ( callback = this._onResolve.shift() ) {
-            callback(value);
-        }
-
-        return this;
-    },
-
-    /**
-     * Rejects promise with error
-     *
-     * @param {Object} value
-     */
-    reject: function(value) {
-        if (this._rejected || this._resolved) {
-            return;
-        }
-
-        var callback;
-        var original = this;
-        this.value = value;
-        this._rejected = true;
-
-        // executes callbacks througnt all chain
-        while ( original ) {
-            while ( callback = original._onReject.shift() ) {
-                callback(value);
-            }
-            original = original.child;
-        }
-
-        return this;
-    },
-
-    /**
-     * Registering onresolved callbacks,
-     * method returns promise, so if your callback
-     * returns promise you can chain `then`s
-     *
-     * @example
-     *  promise
-     *      .then(callback1)
-     *      .then(callback2)
-     *
-     *  callback2 will be executed, when promise from callback1
-     *  will be resolved and fulfillment value from this promise
-     *  will be passed as argument to callback2
-     *
-     * @param {Function} callback
-     *
-     * @return pzero
-     */
-    then: function(callback) {
-
-        // if allready rejected -
-        // pass throught and do not execute callback
-        if (this._rejected) {
-            return this;
-        }
-
-        var promise = pzero();
-
-        // save link to meta promise
-        this.child = promise;
-
-        var wrapper = function(value) {
-
-            var result = callback(value);
-            // check if object is pzero instance
-            if (pzero.is(result)) {
-                result.pipe(promise);
-            } else {
-                promise.resolve(result);
-            }
-        };
-
-        if (this._resolved) {
-            wrapper(this.value);
-        } else {
-            this._onResolve.push(wrapper);
-        }
-
-        return promise;
-    },
-
-    esle: function(callback) {
-
-        if (this._rejected) {
-            callback(this.value);
-        } else {
-            this._onReject.push(callback);
-        }
-
-        return this;
-    },
-
-    pipe: function(promise) {
-        this.then(function(value) {
-            promise.resolve(value);
-        });
-
-        this.esle(function(error) {
-            promise.reject(error);
-        });
-
-        return this;
-    },
-
-    /**
-     * Tests object to be a pzero instance
-     *
-     * @return String
-     */
-    toString: function() {
-        return TO_STRING_VALUE;
-    }
-};
-
-proto._create.prototype = proto;
-
-/**
- * Tests if object is pzero's instatnce
- *
- * @param Object
- *
- * @return Boolean
- */
-pzero.is = function(obj) {
-    return typeof obj === 'object' && obj._is === _IS_VALUE;
-};
-
-/**
- * Waits for all promises to be fulfilled
- *
- * @param {Array} promises
- *
- * @return pzero
- */
-pzero.when = function(promises) {
-    var promise = pzero();
-    var result = [];
-    var len = promises.length;
-
-    if (len) {
-        promises.forEach(function(current, i) {
-            current
-                .then(function(value) {
-                    result[i] = value;
-                    len--;
-
-                    if (!len) {
-                        promise.resolve(result);
-                    }
-                })
-                .esle(function(value) {
-                    promise.reject(value);
-                });
-        });
-    } else {
-        promise.resolve([]);
-    }
-
-    return promise;
-};
-
-if (typeof module !== 'undefined' && module.exports) {
-    module.exports = pzero;
-} else {
-    root.pzero = pzero;
-}
-
-})(this);