G-Map from XRoad sent us a postcard from their drive up highway 3.0 and let us know they've come back with great new features like real-time voice guidance and turn-by-turn arrows.

And as always, since G-Map 1.3.1 downloads its maps to your iPhone, you don't need a data or Wi-Fi connection to use them, which comes in handy when in-between cities and off the grid.

Both G-Map East [$34.99 - iTunes link] and G-Map West [$34.99 - iTunes link] are currently on sale at a reduced price in the App Store. So, if no-subscription, download-to-your-iPhone turn-by-turn GPS navigation appeals to you, and you decide to give it a try, let us know if it gets you where you're going.