My company AppAnnex presents you our newest and most accurate application called Speed Tracker.
Speed Tracker has lot of build-in features that help you to gather all the necessary trip statistics while driving. Before going on a trip, start the application and enjoy. Speed Tracker will do all the automatic calculations and save all your stats.
GPS Speedometer and Trip Computer. Speed Tracker did a great job by combining GPS speedometer, Trip Log and Trip computer in one unique application. No more need for endless list of applications on your Windows Phone. Just take Speed Tracker app with you and automatically record your location, speed, time, distance and many many more.
Speed Tracker is available for $1.99 (or equivalent amount in other currencies) through the Windows Phone Marketplace in Navigation category. Need more information: http://www.appannex.com/speed-tracker-gps-speedometer-and-trip-computer
Purchase and Download http://www.windowsphone.com/en-US/apps/441f9c71-1714-42e1-b442-4be2c4cb99a7
Let's organize a contest: the person who will find a bug in this app, will get a special prize.
Write me on firstname.lastname@example.org.