Integrated Personal Mobility Architecture (IPMoA) is a personal mobility framework that supports personality in both the areas of personal communications and personalising the user?s operation environments and services. In this paper, we describe how we use mobile agents in this architecture to achieve the results of providing personal mobility support in the area of personalising the user?s operational environments and services. In particular, we describe the functionality of the Personal Service Assistant (PSA). The services that a PSA can provide includes executing user?s applications that cannot be "migrated" with the user, such as applications implemented in native code, and customised Internet services, namely HTTP and email, based on the user?s terminal and network characteristics. This paper then illustrates the viability of the proposed scheme through a prototype implementation.