I bought it from a mall kiosk leased by V-Tex Global Inc (http://vtexglobal.com/navigation_bars/Locations.html). I started looking for one of these iPhone holders right after I downloaded MotionX's GPS software. 

 
More on this, later.

[Update:  it is a tight fit into the lighter socket, and it works!]

--
"Give me the tools . . . I'll make something with them."
    . . . sent from my iPhone . . .