Comment Republic Wireless, but there are other options (Score 4, Informative) 273
There are options from most of the carriers. I'm doing the Republic Wireless $10 unlimited talk and text, but with no data. Having a 4G phone with no data sucks, but the price is compelling, and I should be able to add a prorated data plan for the times when I expect I do need it. Having WiFi calls when I'm at a place with no cell reception is also nice. However, counting the phone, my bill is higher than if I had been able to keep my dumbphone on somebody's T-mobile family plan.
Ting is a great choice for Sprint, Airvoice is a great choice for AT&T, PagePlus is decent for Verizon.
One interesting option is FreedomPop, but they seem to be in beta. Earlier versions of FreedomPop phones had poor performance and very poor voice quality, but they're supposedly improving. It would be interesting to see if they go anywhere with that.