The New York Times has brought to light a new FCC initiative to help cell phone users know more about their cell phone charges so what is called "bill shock" is avoided.
This is a real world problem, promulgated by carriers technical issues, with technical solutions to the problem. Basically, all it means is that the carriers need to insert technology that provides notifications to their customers, the same way airlines can provide flight status updates to passengers.
Every mobile phone has SMS making it the easiest way to report this is via SMS as the notification system. My guess is the smaller, more nimbler mobile operators will be the first ones to embrace the idea of removing bill shock, while the larger mobile operators take longer. With LTE looming, that when you'll likely see the likes of Verizon Wireless add it in.