Walmart will begin offering their own branded wireless service (partnered through T-Mobile) starting next Monday. The retailer already offers cell plans through AT&T, Verizon, Sprint and T-Mobile. This will add a service option for a plan under its own name.
You'll have to pay for the phone, but they're relatively cheaper - you can get a Nokia for $35. And it'll cost $45 each month for unlimited calling and texting. But data is insanely expensive. $40 for 1gb, which compares to AT&T's $25 for 2gb or T-Mobile's own $30 for unlimited. The data can be shared among multiple phones in the same family but still that's a ton of cash.