
The cost of of the application is what seals its position as my default GPS software. $3 buys you the program and includes an introductory month of spoken turn-by-turn navigation. Additional months cost $3, or you can pay $20 for the year. At a maximum $23 per year, Motion X is incredibly cheap compared to stand-alone GPS receivers and GPS applications. If you don't want to pay beyond the initial $3, you can still use the application's maps and trip plotting, but you won't have live navigation.
So where do you rest your iPhone while you're traveling the highways and byways? If you didn't score the rental car with a perfectly placed cup holder, I recommend the GOgroove FlexSMART. The Flexsmart is 3 handy products in one. It's a flexible mounting stand for your iPhone, it charges your phone while it's docked, and it sends the audio from the phone to the speakers of your car using an FM transmitter. In dense city environments, you may experience some competition from the local Lite FM channel, but you can easily choose other frequencies which the Flexsmart will use to broadcast to your car's radio.
iPhone speakers do a good job in many situations, but being able to hear your route directions over the drone of the highway is essential. It's also great to listen to your own music over the cars speakers, and the Flexsmart puts out clear sound quality overall. I was worried that a stand suspending my phone in the air might shake and risk the phone falling, but my device feels secure on the solid stand. $39.95 may seem high, but the 3-in-1 functionality makes the price reasonable.
If you're an occasional driver who owns an iPhone, I encourage you to invest the small fee and give Motion-X a try. If you know you've got some extended road time in your future, consider adding the GOgroove Flexsmart to give your phone an adjustable charging dock with enhanced audio.