diff --git a/tutorial/as3/src/CalculatorUI.as b/tutorial/as3/src/CalculatorUI.as
new file mode 100644
index 0000000..d996df5
--- /dev/null
+++ b/tutorial/as3/src/CalculatorUI.as
@@ -0,0 +1,142 @@
+package {
+  import flash.display.Sprite;
+  import flash.text.TextField;
+  import flash.text.TextFieldType;
+  import flash.events.MouseEvent;
+  import flash.system.Security;
+
+  import org.apache.thrift.transport.TSocket;
+  import org.apache.thrift.transport.TTransport;
+  import org.apache.thrift.protocol.TProtocol;
+  import org.apache.thrift.protocol.TBinaryProtocol;
+
+  /**
+   * Simple interface and connection logic implementation for tutorial.
+   */
+  public class CalculatorUI extends Sprite {
+    public static const BUTTON_PADDING:uint = 5;
+
+    private var mCalculatorClient:Calculator; // we use calculator through interface
+    private var mTransport:TTransport; // Transport, used to comunicate with server
+
+    private var mAddButton:Sprite;
+    private var mLeft:TextField;
+    private var mRight:TextField;
+    private var mResult:TextField;
+
+    private var pingButton:Sprite;
+
+    public function CalculatorUI() {
+      buildInterface();
+      initSecurity();
+      initConnection();
+    }
+
+    private function initSecurity():void {
+      Security.loadPolicyFile("xmlsocket://127.0.0.1:9092");
+    }
+
+    /**
+     * Example of initializing connection.
+     */
+    private function initConnection():void {
+      mTransport = new TSocket("127.0.0.1", 9090); // we connect to server
+      mTransport.open();
+      // initialize protocol:
+      var protocol:TProtocol = new TBinaryProtocol(mTransport, false, false);
+      mCalculatorClient = new CalculatorImpl(protocol); // finally, we create calculator client instance
+    }
+
+    private function onPingClick(me:MouseEvent):void {
+      if(!mTransport.isOpen()) return;
+      mCalculatorClient.ping(onPingError, onPingSuccess);
+    }
+
+    private function onPingError(error:Error):void {
+      trace("Error, while requesting ping.");
+      throw error;
+    }
+
+    private function onPingSuccess():void {
+      trace("Ping returned successfully");
+    }
+
+    private function onAddClick(me:MouseEvent):void {
+      if(!mTransport.isOpen()) return;
+      var num1:Number = Number(mLeft.text);
+      var num2:Number = Number(mRight.text);
+      mResult.text = "Processing...";
+      mCalculatorClient.add(num1, num2, onAddError, onAddSuccess);
+    }
+
+    private function onAddError(error:Error):void {
+      trace("Error, while requesting add.");
+      throw error;
+    }
+
+    private function onAddSuccess(res:Number):void {
+      mResult.text = String(res);
+    }
+
+    private function buildInterface():void {
+      addChild(pingButton = buildButton("PING"));
+      pingButton.x = (stage.stageWidth - pingButton.width) / 2;
+      pingButton.y = 10;
+      pingButton.addEventListener(MouseEvent.CLICK, onPingClick);
+
+      var top:Number = pingButton.y + pingButton.height + 20;
+      addChild(mLeft = buildDigitInput());
+      mLeft.x = 15;
+      mLeft.y = top + BUTTON_PADDING;
+      addChild(mRight = buildDigitInput());
+      mRight.x = mLeft.x + mLeft.width + 15;
+      mRight.y = top + BUTTON_PADDING;
+      addChild(mAddButton = buildButton("ADD"));
+      mAddButton.x = mRight.x + mRight.width + 15;
+      mAddButton.y = top;
+      mAddButton.addEventListener(MouseEvent.CLICK, onAddClick);
+      addChild(mResult = buildDigitInput());
+      mResult.x = mAddButton.x + mAddButton.width + 15;
+      mResult.y = top + BUTTON_PADDING;
+    }
+
+    /**
+     * Simple digit-only input field.
+     */
+    private function buildDigitInput():TextField {
+      var textField:TextField = new TextField;
+      textField.width = 75;
+      textField.height = 20;
+      textField.restrict = "0987654321.";
+      textField.type = TextFieldType.INPUT;
+      textField.background = true;
+      textField.backgroundColor = 0xaaaaff;
+      textField.textColor = 0xffff00;
+      return textField;
+    }
+
+    /**
+     * Simple button drawing.
+     */
+    private function buildButton(text:String):Sprite {
+      var button:Sprite = new Sprite;
+      var textField:TextField = new TextField;
+      textField.width = 4000;
+      textField.text = text;
+      textField.textColor = 0xffff00;
+      textField.width = textField.textWidth + 4;
+      textField.height = textField.textHeight + 4;
+      textField.mouseEnabled = false;
+      button.graphics.beginFill(0x0000ff);
+      button.graphics.lineStyle(0, 0x000000);
+      button.graphics.drawRoundRect(0, 0, textField.width + BUTTON_PADDING * 2,
+                                    textField.height + BUTTON_PADDING * 2, BUTTON_PADDING);
+      button.graphics.endFill();
+      button.addChild(textField);
+      textField.x = BUTTON_PADDING;
+      textField.y = BUTTON_PADDING;
+      button.useHandCursor = button.buttonMode = true;
+      return button;
+    }
+  }
+}