MotionX-GPS Drive is a complete GPS navigation solution designed and optimized exclusively for the iPhone 3G and 3GS. MotionX helps you find what you're looking for and provides turn-by-turn directions with optional Live Voice Guidance using industry-leading road maps. The most accurate and reliable solution for the iPhone, MotionX-GPS Drive embeds the functionality of an advanced dedicated turn-by-turn GPS unit into a simple and intuitive iPhone application.