As I have sold my car I am selling the mount for my iphone that I bought. It is a nice secure clean finish that blends in well with the car. Many of the US guys have gone with this mount
See website for more info.
ProClip Mounting System - Nissan 370 Z 2009-2011 - ProClip Angled Mount
I ordered direct from Proclip as it worked out a little cheaper then some of the Australian resellers.
It cost me the following
Part 1 - VEHICLE MOUNT for 370Z $29.99USD
Part 2 - DEVICE HOLDER Tilt Swivel for iPhone 3Gs $34.99USD
Shipping from USA $30.83
TOTAL = $95.81USD
FOR SALE $60AUD