Patent attributes
Systems, software and methods are disclosed for using a mobile phone (1640) in conjunction with a head unit (1620) of a vehicle. The user interface of a user application program (1644) executing on the mobile phone is extended to utilize a generic display screen (2104) of the head unit, so that custom or per application development of head unit software can be avoided. Preferably, a handset application proxy (HAP) software application (1642) is installed and executable in the mobile phone; and a head unit proxy (HUP) software component (1630) is executable on the head unit. The HAP and the HUP communicate messages (1814, 1824) between the head unit and the mobile phone. Preferably, the HAP (1700) includes a scripting language component (1710) associated with the user application (Nomadic Appn), and having a template message translator component (1712).