AT&T Launches Wireless POTS Replacement Service → Been there done that..

Already have a similar solution.. Cost me around $48 in hardware and ~$6.60/mo.

Tracfone w double minutes, w376g($30) + 1 yr service(800-1000minutes)($80)
Siemens Gigaset One Blue Tooth gateway. $18.. (Officemax closeout)

I have text messaging when needed, caller logs, 7 day battery backup(cell phone).
All the features listed by At&t.. caller-id(numbers only), call waiting..

Plus the Gigaset one/(Xlink BTTN) links up to three cell phones to your home phones. Long distance+60 countries calling just uses normal air time.

I use Skype on my PC to dial toll free numbers.. (no charge)..others 0.02$ min..

but what if a nuke goes off
your phone won't work ;'(

telco switches are electronic now - if a nuke goes off, nobody's phone will work