Came across this on nasaforums.com and I thought some of you iPhone users may like it
http://www.nasaforums.com/viewtopic.php?f=42&t=29561
[quote]Harry’s GPS Lap Timer!
$4.99 Traqmate basicly…
SUMMARY
Harry’s GPS LapTimer is both an easy to use lap timer, and an advanced GPS based data recording tool for amateur racing.
Utilizing GPS, LapTimer will automatically stop your laps and intermediate times - a unique feature on the iPhone platform. LapTimer is an extremely inexpensive option compared to standalone solutions.
With laps stored in a database, you will be able to track your progress while improving your lap times. Recorded laps can be viewed and analyzed graphically. In addition to ‘on device’ analysis, you can export your laps to CSV, TRK, and KML (GoogleEarth) files.
FEATURES
Special features are: real time lap to lap comparison utilizing a ‘shadow mode’; extensive display of GPS information (position, speed, height, heading, slope, receiver update rate, accuracy, etc.); top speed recording; realtime detection of last straight’s top speed and last curve’s lowest speed; define and refine Points of Interest / triggers; automatic accelerator calibration; fancy acceleration view including max values and zooming.
OUR MISSION
The application is enhanced continuously. Our ambition is to provide you with the best GPS tool available for the iPhone platform. LapTimer on iPhone is based on the robust GPS Engine known for years on the PalmOS versions. This GPS Engine was enhanced to use and fully integrate iPhone’s acceleration sensors. The front end of LapTimer on iPhone is completely new development featuring a perfect, and beautiful iPhone look & feel.[/quote] 