I'm currently interested in a special scanner that may not be utilized today...
-It stores names either through a notecard or through a list system stored in the prim's memory.
-It scans the sim for those people on the sensors list.
-If they are at least 90m away it tells me that person is far away
-if they are at least 50m away, it tells me they are close
-if they are at least 20m away, it tells me they are nearby