[Stu]

ATT's plan does include on device data, but requires a one year commitment. If you are on a Blackberry enterprise plan on device data is functionally included on many of these plans because the carrier can't see what data is going back to your company server. They can, however, see the megabytes. If you do a little IMing or surfing on the device, it will fly through the system. Tethering the device and downloading your favorite movie from Bit Torrent is a different story.