I just reviewed my AT&T account online for the first time as I'll have to be paying my first (iPhone) bill soon, and I saw something that I'm wondering about. It looks as though I'm being charged $0.03 when I send or receive a text message, but it isn't ALL the time. That's already added almost $9 more to my monthly bill. I bumped up my SMS from the included 200 to 1500/month when I first signed up. Just wondering if this is a normal thing with AT&T, or with the iPhone plan. Anyone know?