According to this link:
http://www.marketwatch.com/story/att...017-2012-08-03
AT&T will be shutting down its 2G GSM/GPRS/EDGE network in 2017. This seems like a wise move for AT&T, as it needs to reallocate its spectrum for faster 3G and 4G networks, considering today's data usage. In 2008, AT&T shut down its 1G analog AMPS and its (older) 2G TDMA/D-AMPS networks.
I wonder though, before AT&T shut down its AMPS and TDMA networks, AT&T was adding a surcharge to users still using an AMPS or TDMA phone. I wonder if AT&T will soon do the same for those using 2G-only (GSM/GPRS/EDGE) devices.