I recently changed to a prepaid service (AT&T MVNO), and I'm curious to know if it's really that much less. I'd like to keep track of my minutes and texts. I know I can reset statistics in Settings, but does anyone know an app that keeps track of data/minutes/texts? I've found some, but they require you to use their app to call and text and I don't want to do that. It's an iPhone 3GS, 5.0.1, jailbroken. Thanks!