Abstract: A frictional displacement resistant conformal dop assembly is provided. A dop head of the dop can include a ball joint including a hemispherical portion received within a housing, the hemispherical portion having a center of rotation proximal to the surface, such that frictional forces applied perpendicular to a movement of the dop head are not associated with reduced conformity of the dop head to a surface interfacing therewith.

Abstract: Systems, devices and methods are provided to display or otherwise provide addresses in proximity to the device, and to periodically update the addresses as the navigational aid device is transported along a road. The device is adapted to be transported on a road. The device includes a processor and a memory adapted to communicate with the processor. The processor and the memory are adapted to cooperate to provide an address that is proximate to the device. Another aspect includes a method. According to one method embodiment, an address proximate to a navigational aid device is estimated and displayed on the navigational aid device. Other aspects are provided herein.