I was just wondering if any users of the aforementioned apps can tell me how their data usage shows up in their AT&T account when tethering. I am currently contemplating jailbreaking my iPhone 4, and briefly enabled tethering via the carrier preferences modification way back when iOS 3.0 was released. I noticed that after doing so, when I looked at my data usage in my AT&T account, any tethering showed up as "internet" with the associated data usage (i.e. xx KB). Likewise, any data access directly from my phone showed up as "phone." I realize that there are a large number of users of these apps that have seemingly done so without issues, but I'm paranoid.