More privacy concerns; are we not alone ever?

Starting on Black Friday and running through New Year's Day, two U.S. malls -- Promenade Temecula in southern California and Short Pump Town Center in Richmond, Va. -- will track guests' movements by monitoring the signals from their cell phones.

http://money.cnn.com/2011/11/22/technology/malls_track_cell_phones_black_friday/