1. A Web-enabled mobile image capturing and processing (MICAP) cell-phone for use on a Web-based shipping, tracking and delivery network, said Web-based MICAP cell-phone comprising: a hand-supportable housing: a digital image capture and processing engine for capturing and processing digital images of shipping documents at a point of shipment pickup; an imaging-based bar code reading engine for recognizing 1D and/or 2D bar-coded labels in captured digital images; a display panel for displaying said digital images a microprocessor with program memory and non-volatile memory; an RF transceiver circuit with an RF antenna coupled to the RF transceiver circuits supporting wireless data communication protocols; a rechargeable battery for providing electrical power to components within said Web-based MICAP cell-phone; wherein said microprocessor and memory provides a computing platform supporting an operating system (OS) and one or more application programs, including a Web browser program, and a client application program; and wherein at least said application program supports the automatically reading of bar-coded shipment tracking numbers graphically represented in said digital images, and automatically generates digital image files (i) having headers that are encoded with machine-recognized shipment tracking numbers, and (ii) which are named or titled using said machine-recognized shipment tracking numbers.