System and method for alerting a first mobile data processing system nearby a second mobile data processing system

A data processing system, comprising:

• means for determining a first situational location with a first automatically detected location of a first mobile data processing system;
• means for receiving content from said first mobile data processing system;
• means for determining a region around said detected location of said first mobile data processing system, wherein said region is defined by a circle having a radius that is user configurable;
• means for determining a second situational location with a second automatically detected location of a second mobile data processing system, where said second mobile data processing system has a predefined relationship to said first mobile data processing system and the relationship is known to the data processing system, or a second user of said second mobile data processing system has a predefined relationship to a first user of said first mobile data processing system and the relationship is known to the data processing system;
• means for determining that said second mobile data processing system is within said region;
• and
• means for sending said content to said second mobile data processing system.

A system, comprising:

• a first mobile data processing system;
• a second mobile data processing system;
• a data processing system configured for:
• determining a first situational location with a first automatically detected location of said first mobile data processing system;
• receiving content from said first mobile data processing system;
• determining a region around said detected location of said first mobile data processing system, wherein said region is defined by a circle having a radius that is user configurable;
• determining a second situational location with a second automatically detected location of said second mobile data processing system, where said second mobile data processing system has a predefined relationship to said first mobile data processing system and the relationship is known to the data processing system, or a second user of said second mobile data processing system has a predefined relationship to a first user of said first mobile data processing system and the relationship is known to the data processing system;
• determining that said second mobile data processing system is within said region;
• and
• sending said content to said second mobile data processing system.