I've been using the Susteen Data Pilot software and USB cable through Motorola V180 for 6 weeks with the Cingular 3.99/mo data plan. So far no additional charges for data services - just minutes used. With 5000 minutes after 9PM and on weekends that's no problem. I'm sending this from a campground near Albany, NH. It's not fast, but works OK most of the time. I'm going to change plans to travel in Canada for about a month. I hope that doesn't foul up my Internet access there or when I return to my present plan as I reenter U.S. mid - August.