Found this on another site, anyone have it?
"I've checked in on Steve Rupp's video from RTTC where Nathan is driving a BFG VIP a couple of times. I really like the info from Steve's racepak. Got me wanting to spend $$$ on another thing I don't need but really WANT.
So today I'm playing around with my IPhone and a lightbulb goes off. The Iphone has GPS and accelerometers maybe someone has an app to record some data. Doing some basic searches on my phone in the app store showed fairly poor results.
However, when searching on google I came across an app mentioned in a few places. Harry's Laptimer. I'm still reading up on it but thought I'd ask if anyone here has used it and let others like me who haven't learn about it.
This thing will take video of every other lap and record data for every lap. It needs the off laps to process the video. You can even make a video on your phone with a track overlay with speeds. "
http://www.youtube.com/watch?v=HUE1zTcywos
"I bought the pro version. Whipped up a quickie mount with a spare phone cover and the suction cup mount from my GPS unit and went for a little spin in the daily. The app is pretty cool! I wont post video, as I reserve the right to not incriminate myself, but I can certainly see how cool it would be on a track. I'll be putting it to use next month for sure. "
thought this was a great idea, might have to try