I ran quite some laps with an iPhone3G, so it works in principle. The 3G and 3Gs are by far not as good as the iPhone4 GPS is, but for timing it should work. You may consider the Emprum Ultimate GPS or the Dual XGPS150 to improve. - Harry I'm waiting for the iPhone5 to be released then everything s...

Thanks, Harry. I have since rebuilt my iPhone several times since last weekend as it wasn't running very well so I doubt the logs will be there but I will look. My friends phones were automatically starting to record when passing the bridge but mine wouldn't so I pressed the record button manually. ...

Hi, I am running Lap Timer Pro on an iPhone 3GS and have been experiencing the following issues: 1 - When I was at the Nurburgring last weekend Lap Timer wouldn't start automatically at the Bridge and would crash (exit back to iPhone home screen) when reaching the Gantry. I tried messing about with ...