A handheld wireless device is adapted to function as a lightweight, small, and low-cost wireless server for serving handheld wireless clients. The handheld wireless server includes a battery that powers the server, data processing circuitry, read/write memory, and a memory port for receiving an external, detachable, long term, read/write storage device. The read/write storage device stores multiple dynamic server applications for execution by the data processing circuitry and multiple dynamic client applications for download to handheld wireless client devices. Wireless communications circuitry broadcasts initial information and detects communications from handheld wireless client devices including requests to download one of the client applications stored on the long term storage device. The data processing circuitry processes, in parallel, multiple download requests for client applications from multiple handheld client devices, retrieves the client applications from the long term storage device, and provides the client applications wirelessly to the multiple handheld client devices. An example application for traveler in a travel environment is described.