We are witnessing a profound change in global information
infrastructure that has the potential to fundamentally impact many
facets of our life.  An important aspect of the evolving
infrastructure is the seamless, ubiquitous wireless connectivity which
engenders continuous interactions between people and interconnected
computers. A challenging area of future ubiquitous wireless computing
is to provide mobile users with integrated Personal Information
Services and Applications (PISA). A wireless client/server computing
architecture will be discussed for the delivery of PISA. Data
management issues such as transactional services and cache consistency
will be examined under this architecture.