Android mono bluetooth app.

Need a clean android app the will route audio from android phone to any mono bluetooth device. Must be proficient in android app development and have a android phone that you can use to test the app. This app needs to work on a variety of android phones and version of android (1.5-2.2). App needs to be able pause audio playback when during a phone call and automatically resume after the call has ended. Also needs to have a simple widget to turn on/off. Must have a clean and simple looking interface. Please message me if you have any question or need further details.