Unlimited plan actually has a data cap
One the most interesting things to happen the mobile phone world over the last several months was Walmart's announcement earlier this month of its Straight Talk Unlimited plan for $45 per month. This Unlimited plan promised all the phone calls, text, and data consumers can use on their iPhone at a impressively low price. Naturally users have to pay cash up front for the iPhone itself, which was far from cheap.
However, now that the plan has been available for a while people have time to poke around and look at the fine print. As it turns out the unlimited data offering isn't exactly unlimited. Walmart's Unlimited plan actually has data cap at 2 GB per month that went pretty much unstated.
Walmart may technically be accurate in calling the plan unlimited, they don't cut you off or charge more, they simply throttle your data speed. I'm of the opinion that a cap is a cap no matter how you phrase it. If you're considering this plan at least now you know your speech will be slowed significantly once you pass that 2 gigabyte monthly usage limit.