Some useful info in here
I've just been using my phone (Galaxy S3) to record my videos with a suction screen mount off ebay (call me cheap

)
http://www.ebay.co.uk/itm/2009935217...84.m1439.l2649
It's not great if just mounted on the screen directly as there's a lot of vibration
https://www.youtube.com/watch?v=lNgNC9rDJQA
But if its positioned lower down and braced against the dashboard there's no vibration. Just a shame i recorded a few laps before realising...
https://www.youtube.com/watch?v=oRTano1NKcQ
The audio seems alright for a phone tbh, and the rate at which phone handsets are developing is only going to make this a good option in the future. Got Harrys Laptimer for Germany as well but couldn't get it to work properly, seemed bugging on Android. Need to try it out again but gave up as I lost two laps that didn't record and went back to standard video rather than risk losing more.