The AT&T Mark the Spot iPhone app provides customers a means to send feedback on their network user experience to AT&T.
Features - Simplicity of operation - Submit a real time report capturing local GPS coordinates at time and place of event - Submit a report after the fact when a customer is not at the place of event - Submit a report of dropped call, failed call, lack of coverage, data service failure, or poor voice quality - Submit optional specific comments about an event - Receive an SMS acknowledgment that the reported event was sent and received successfully.
I can't help but think that most of these reports can be generated internally; however, this certainly is a good sign that AT&T is serious about repairing its network and improving its customer perception.
You can download the application free from the App Store.