I know at this point that this is a cliche, but really I did Google my question, as well as searching the iPhone section of the forums. Please be kind. I was just wondering if anyone knew, or could think of a way to calculate the iPhone's data usage when driving down the freeway at 60mph? On either a per/second or per/minute basis. My scenario is chosen as it seems that would be the situation in which the maps application would be using the most amount of data from refreshing. Like I said I looked around and couldn't find a satisfactory answer, and honestly I haven't even found anyone with the same question which kind of surprised me. Thank you!