Fecha de publicación: -- Fuente: Wipo "digitalization" The invention provides, in some aspects, a digital ticketing system, comprising first, and second digital data devices (e.g., -cell phones, PDAs, etc.) that are coupled, at least intermittently, with a server via a network. The server responds to a request, e.g., from the first digital data device, by electronically issuing to it a ticket (or option therefor) for use by a holder thereof in gaining a seating (or other selected attendance) at an even t. The server responds to a subsequent request, e.g., by the second digital data device, by (reissuing the ticket (and/or option), to it for use by a holder of that second device in gaining the aforesaid seating (or other selected attendance) at the event in lieu of that by the holder of the first digital data device. Other aspects of the invention provide systems for the exchange of tickets (and/or options) between devices, as well as for the exchange of options, to buy tickets.