Boy Genius' sources have been hearing that AT&T has been meeting with their regional executives to discuss network changes that will soon be taking place in order to handle the load of "unannounced" devices that will use "heavy data".

iTablet and/or 4th generation iPhone perhaps?

"Heavy data" use has led AT&T to talk about tiered data pricing plans in the past. When these "unannounced" devices appear on their network, would you be surprised to see AT&T spring that on us as well?