Information processing terminal and computer program

An information processing terminal with a built-in IC chip having a plurality of data areas present therein, which engages in wireless data exchange with another device through noncontact communication, comprising:

• a request reception unit that receives a function request issued to said information processing terminal from the other device;
• a GPS signal reception unit that receives GPS signals originating from a GPS satellite;
• a current position measuring unit that measures the latitude and longitude of the current position of said information processing terminal based upon the GPS signals received by said GPS signal reception unit;
• a defining information recording unit in which defining information, defining functions that can be engaged at said information processing terminal, is recorded;
• a function decision-making unit that makes a decision as to whether or not a function can be engaged based upon said defining information and the latitude and the longitude of the current position measured by said current position measuring unit;
• and
• a data read/write unit that executes data read/write from/into a specific data area among said plurality of data areas based upon results of the decision made by said function decision-making unit.