Two possible scenarios: AT&T cuts $10 of the voice part of the plan, or they downgrade existing 3G service (1.4Mb/s) and add a new tier that uses the HSDPA 7.2Mb/s speeds (probably rated at 2.5Mb/s) at $30/mo.
Yes, I know the current 3G phone supports 7.2Mb/s HSDPA, AT&T would offer a choice between the two speeds.
Yes, I know the current 3G phone supports 7.2Mb/s HSDPA, AT&T would offer a choice between the two speeds.