That looks like a proper / affordable lap timer

[MikenOH]

Originally Posted by Topless

FYI,
Harry's /iphone now supports 5hz receivers. Even with a Tom Tom 1hz receiver the software now utilizes interpolation so accuracy is typically within 5/100s of a second and 3 meters. Harry's software development has come a long way since it's initial introduction.
Compatibility

The Ultimate GPS device fits into the iphone 30 pin slot and runs about $100 on Amazon--5hz. Haven't hear much about the software which adds accuracy.

Regarding RC, which version do you run? I'm trying it on my MOT Q9 and it's abit of a pain to use. How do you save a session? I can see where you pause it but not where you can save it; this phone doesn't have a touch screen BTW. I'm using the 1.45 Wincomm version.