1. A computer-implemented method for targeted delivery of advertising of a first or second sponsor via a cellular telephony infrastructure to a plurality of cellular phones of a first or second type by establishing a competitive bid auction process, the method comprising the steps of: (a) presenting data corresponding to the first type and the second type of cellular phone each to the first sponsor and the second sponsor, wherein a rendering capability of the first type of cellular phone is different from a rendering capability of the second type of cellular phone; (b) receiving a first advertising content and a second advertising content each from the first sponsor and the second sponsor, wherein the first advertising content requires the rendering capability of the first type of cellular phone to be rendered thereon and wherein the second advertising content requires the rendering capability of the second type of cellular phone to be rendered thereon, wherein the first advertising content is incompatible with the second type of cellular phone and the second advertising content is incompatible with the first type of cellular phone; (c) receiving a bid from the first sponsor, wherein the bid includes: (1) selection by the first sponsor of the first type of cellular phone; and (2) an amount offered for delivery of the advertising of the first sponsor to the plurality of cellular phones of the first type; (d) receiving a bid from the second sponsor, wherein the bid includes: (1) a selection by the second sponsor of the first type of cellular phone; and (2) an amount offered for delivery of the advertising of the second sponsor to the plurality of cellular phones of the first type; (e) attributing a priority to the delivery of the advertising of the first sponsor over the delivery of the advertising of the second sponsor based upon a determination that a resultant yield based on the amount of the first sponsor is greater than a resultant yield based on the amount of the second sponsor; (f) receiving an advertising request associated with the first type of cellular phone; (g) determining that the relevance to the advertising request of the first advertising content and second advertising content is the same; (h) determining that the first type of cellular phone can render the first advertising content and cannot render the second advertising content; (i) transmitting via the cellular telephony infrastructure the first advertising content instead of the second advertising content to the plurality of cellular phones of the first type; and (j) receiving a response to the first advertising content from at least one respective user of the plurality of cellular phones of the first type via the cellular telephony infrastructure, wherein the response redirects the user to a landing page for allowing the user to purchase a purchasable item relating to the first advertising content.