The market basket measure is a basket of subjectively determined goods and services. I mean, the wealthiest kings of the Middle Ages would have lived in the most sumptuous circumstances and they would not have considered a smart phone to be a necessity, so if we say that a smart phone is required to live above the poverty line, then we are making a subjective determination that in no time in history would have been considered for a poverty line.
My concern about this whole measurement is that we're just going to allow a lot of opinions to determine what goes in the basket, rather than a mathematical standard. How are people supposed to know what poverty is when it is just an ensemble of bureaucratic and interest group opinions that determine what someone must have to avoid being poor?