Dynolicious....No, it does not offer logging yet AFAIK. I just jailbroke my phone last week and still searching through all the cool apps not found through the app store.
This doesn't work for 07+ spec B's. We do not have the clock except for the one on our nav. Which makes me wonder...what was the outcome of the Nav temp readings?
What about the sensor for the NAV information? Probably coming from the same sensor? I don't have said clock since I have the OEM nav, so I am hoping to hear what you find out with the other car you are doing the NAV testing on.