I thought I would post up my analysis and review after my first outing with Racechrono.
In this first use I wanted to test it for laptime accuracy and also evaluate it for its lap comparison feature. At this track day (Wakefield Park in Australia), we were able to use the tracks own official Dorian timing system which is accurate to one thousandth of a second. I was using Racechrono on a Nokia N73 with a very cheap Holux M1000 (AUS$65) which is a MTK based 1hz bluetooth receiver. I should also mention I was not very organised so did not mount the receiver on the windscreen or outside the car on the rear window like I had planned so it was in the centre compartment, so not ideal. Anyway here are the results.
*:**.*** (in lap)__1:47.586
*:**.*** (in lap)__1:54.674
So there you go, all are within 0.2 and 10 out of the 13 are within 0.1. I did three more sessions but they turned off the official timing, damn. Best lap for the day was a 1:11.46.