Portable intelligent shopping device

A method of selling an item of interest in a store to a shopper in possession of a mobile information processing device, the method comprising steps of:

• receiving at a store wireless terminal a short range wireless signal transmitted from a short-range transmitter operatively coupled with a mobile information processing device, said wireless signal comprising information including the item of interest for potential purchase by the shopper;
• responsive to receipt of the short range wireless signal, identifying the item of interest;
• and
• causing a light device associated with the item of interest to light up with a unique signal such that the item of interest is distinguishable from other items in the store to alert the shopper of the item's location;
• at the mobile information processing device:
• generating a list comprising a plurality of items of interest;
• receiving an electronic route map of the store;
• sorting the list of items of interest based on location of the items along a predefined route in the store;
• and
• generating a second route map of the store indicating the location of the items of interest.