Wireless grids extend the capability of grid computing to wireless devices. The number of users using laptops, PDAs, cell phones, and other wireless devices is increasing leading to more networked wireless devices, and creating a vast collective potential of unexploited resources. Grid computing has attracted worldwide attention in a variety of applications ranging from physics, chemistry, environment, aerospace and healthcare systems. Grid computing, is an important and developing computing initiative that involves the aggregation of network connected computers to form a large-scale, distributed system for coordinated problem solving and resource sharing. Generally wireless devices are characterized by reduced CPU performance, small secondary storage, heightened battery consumption sensitivity, and unreliable low-bandwidth communication.