BlueControl - Arduino + JY-MCU APP
Run the application, search for JY_MCU Module and pair it, then you can control LED on Arduino.
More functionality is planning to be added. Like getting input from a button on Arduino.
Please comment with any suggestions or ideas. Source code will be available on github.
Instructables: http://www.instructables.com/id/Arduino-JY-MCU-Module-Bluetooth-Android-Applicatio/
GitHub: https://github.com/aso777/BlueControl/