Abstract: A cellular modem device that is integrated with a proprietary dock connector of a mobile device, such as the proprietary 30 pin dock connector of an iPod Touch or iPad, permits the mobile device to connect for Internet access to the associated cellular carrier. The device is usable in circumstances where the mobile device does not contain internal cellular modem circuitry, and/or the device is unable to use WiFi-based Internet and/or the device's internal cellular circuits are out of range of cellular service of the carrier for which those circuits are designed, and/or the internal cellular circuits are not activated on the associated cellular network.