The increased mobility of users and rapid enhancements to "hand held" technology suggest leveraging mobile technology to enhance timely transaction handling and data collection, as well as access robust tools for management decision making in supporting Supply Chain Management (SCM), Enterprise Resource Planning (ERP) and other complimentary systems. Though technology options are prevalent, applications must be developed for fit and viability on mobile devices which do not deter them from needed system functionality. Not only must internal application requirements address the mobility needs of its users, but interaction with external entities (e.g. suppliers) must be considered, as well. This paper reviews the history of devices used for Supply Chain Management and ERP applications through transition to mobile devices, as well as suggesting considerations for mobility and reachability and other factors that influence the utilization of newer technologies.