First hint this is total bunk: There is no prepaid $29 data plan on AT&T. The Pick Your Plan menu includes a $19.99 100MB data option, thats the maximum prepaid data option. On T-Mobile, the internet-only postpaid plan starts at $29.99 for 200MB and $39.99 for unlimited data. I doubt the prepaid plan is CHEAPER, if it even exists (and I couldn't find it) and I don't think the carriers will be creating new plans just for this phone that isn't even being sold through them (in the scenario described).