Multitasking allows MotionX-GPS to record tracks while you do other things on your iPhone such as taking phone calls, visiting a web page, listening to streaming music, or getting Live Voice Guidance with MotionX-GPS Drive for example.
Record tracks in the background with your screen off to extend your battery life!
Background Voice Coaching: hear audible progress updates (distance, time, pace). Go to Settings > Voice Coaching to turn this on.
New Wifi/Triangulation mode estimates your position when GPS is unavailable.