Does anyone know the current status of the old TDMA/AMPS network in the US? AT&T had the single biggest chunk of that technology but the last time I have read anything about this topic a number of years ago, it sounded like they were agressively shutting those parts of it network down as quickly as it could while it built out its GSM capability. Haven't read about that in a long time. This is something that mostly affects those rural and out-of-the-way areas, but that's the OP's concern.

Are there even any analog pre-paid phones anymore? Tracphone used to be one, but haven't they switched to all CDMA handsets now?