Mobile GIS integrates three essential components; GPS, rugged handheld computers, and GIS software (Trimble, 2006). The term "Mobile GIS" can be defined as an integrated software/hardware framework for the access of spatial data and services through mobile devices via wire line or wireless networks.” Wireless GIS" is a subcategory of mobile GIS technology that focuses on the wireless networking capability of mobile GIS services. There are two major application areas of mobile GIS.