Mobile computing and operating platforms consisting of data transceivers, wireless networks and gateways for collection and management of data, namely, stationary, handheld and mobile digital electronic devices for sending, receiving, recording, organizing, manipulating and reviewing audio, video, text and other digital data; MP3 players and digital format audio players; handheld computers, media players, pre-recorded computer programs for personal information management, database management software for personal information management, database synchronization software, computer programs for accessing, browsing and searching online databases, computer software and firmware, namely, operating system programs, data synchronization programs, and computer software development tools, namely, software application development tool programs for personal and handheld computers; handheld computers, namely, electronic handheld units for the wireless receipt and transmission of data, or any combination thereof, that enable the user to keep track of or manage personal information; software for the redirection of messages, Internet mail, and other data, or any combination thereof, to one or more electronic handheld devices from a data store on or associated with a personal computer or a server; and software for the synchronization of data between a remote station or device and a fixed or remote station or device; electronic audio and video components, namely, sound systems comprised of audiovisual receivers, stereo tuners, audio and video recorders and players, radios, and remote controls for the foregoing; audio speakers and loudspeakers