George then created an iPhone application to decode the FSK signals to interpret the keyboard data and display the appropriate characters on-screen.'
'Zack used a Cypress PSoC microcontroller to emulate a simple modem, and then expanded it to detect an infrared signal or read from a USB host controller, and convert this sginal convert it to an FSK signal for transmission to an iPhone. Perceptive Development is claiming that they have developed a hardware and software solution that will allow you to use an external keyboard with your iPhone.
We have already seen few solutions where an iPhone was hacked to pair it with an external keyboard such as wiring it up to a genuine physical keyboard or using an external Bluetooth module to pair it with a Bluetooth keyboard and then without any external Bluetooth module.