Positive Technology Journal

 "When users wish to identify a landmark, they point the hand-held device and press a button. The iPointer™ device receives coordinate signals from GPS satellites and orientation information from the digital magnetic compass to identify the user's location and device's pointing angle. These coordinates are then sent over the wireless network to the database. iST's geospatial database's selection algorithms identify the selected landmark and sends information back over the wireless network to be displayed in text, visuals and audio on the user's device"