Thanks for the update, I ordered my UltiMate GPS from amazon a few days ago, will let you know how it goes.

Emprum UltiMate GPS on Amazon

This thread is for the UltiMate GPS add-on. Harry, can you please update this thread when NMEA is fully integrated. Right now, by choice is between this and the XGPS150, who ever gives you the support you need first, I will be buying their device. For those that are newer: UltiMate GPS has the follo...

I am also patiently waiting for this feature. I had my first track day to try out Harry's Laptimer and it didn't do as well as I expected, GPS signal was great when stationary, but once moving dropped dramatically. The results were very poor GPS tracking, often times missing the start/stop marker co...

Thanks for your feedback, I took my iPhone4 and Harry's laptimer out this past weekend and I was a little disappointed at the speed accuracy, it was way off. It didn't come anywhere close to my top speed. I do plan to use an add-on GPS, but since the track season is almost done in Toronto, Canada. I...

Thanks Harry, Will send each manufacture a note letting them know that if they provide you with the support you need I will consider buying their product.

I'm trying to decide on which GPS add-on to buy. I wanted to get confirmation on if the XGPS 150 BT reciever requires a jail-broken deceive? or if it will work with minimal setup / configuration. I liked the Bad ELF GPS and don't mind that it is attached to the iPhone, but i don't like that it doesn...

Any updates? would be great if Harry could get access to the higher refresh rate. I was considering buying one but i think i'll reconsider for now since i also don't like that it doesn't have NMEA support.