you're not accessing at&t's network, so that will save data for you, you can actually just put up the slower speeds once you can, once you've peed dollars the monthly limit. you could also switch to one of at&t's tiered data plans. that's exactly what they want you to do. that could be up to $30 a month on the three gigabyte the and $50 a month on the five gigabytes and you could simply switch to carrier sprint, the only carrier that offers unlimited plans. verizon doesn't, t-mobile also imposes data caps, by the way, t-mobile doesn't even carry the iphone. it's all about the money, bill. bill you're right about that. go wi-fi! it's spreading all across this country. thank you ashley. >> reporter: thank you. martha: we have got brand new polls to take a look at in the race for the republican nomination. we are just a few days away from supertuesday now, 400 delegates are at stake on that very big day in this process and mitt romney is taking the lead nationally