Subject matter disclosed herein relates to arrangements and techniques that provide for determining a location and/or position of a portable electronic device in order to control features and/or modes of operation of the portable electronic device. A method comprises determining, via the portable electronic device, positional measurement values related to the portable electronic device, determining an absolute value of a difference between a first positional measurement value and a second positional measurement value, and determining an average of absolute values of multiple differences. The average is compared with a threshold. If the average exceeds the threshold, a first mode of operation of the portable electronic device is triggered, and if the average is below the threshold, a second mode of operation of the portable electronic device is triggered.