iPhone without data plan?

[Chris Y]

you can get a gophone plan with AT&T. This is a prepaid plan and they charge 10c/min for calls. Depending on how much she calls it could be less or way more than $10/month. You pay by the minute so some months could be less and some more, but if you average less then you'll come out ahead. I use an Iphone 4 with gophone and don't talk very much. You can also get data but it sounds like you don't want that.