antdude writes "CNNMoney report that "... your cell phone may be tracked this year. Starting on Black Friday and running through New Year's Day, two United States/U.S. malls... will track guests' movements by monitoring the signals from their cell phones.
While the data that's collected is anonymous, it can follow shoppers' paths from store to store.
The goal is for stores to answer questions...
While U.S. malls have long tracked how crowds move throughout their stores, this is the first time they've used cell phones.
But obtaining that information comes with privacy concerns..."