AT&T's prepaid service - you can purchase a bring-your-own-phone starter kit (i.e. just a SIM card) from Radioshack for $10.
The only reasonable smartphone plan is $60/month for 2GB data, and additional data can be purchased at $10/GB. It may be better value to use StraightTalk's $45/month plan that gives you 2.5GB data on the AT&T network.more about AT&T GoPhone »
Smartphone plan overview
AT&T GoPhone operates on the GSM 850/1900, UMTS 850/1900 bands and is compatible with AT&T.
The best smartphone plan that we've located is the $60 Smartphone Monthly Unlimited with Data plan:
- 2 GB data cap
- Unlimited minutes
- Unlimited text messages
- None here - post the first.