Hiya, not exactly a stand alone item but I installed this head unit which utilises your phone as the screen. It is certainly super neat!
Pioneer SPH-10BT Android Bluetooth Spotify iPod iPhone USB Car Stereo
Pioneer SPH-10BT Android Bluetooth Spotify iPod iPhone USB Car Stereo - Discover Smarter Driving.
Hey Barrie. That sounds interesting!
Any chance of some pics of your finished installation?