KT or Korean Telecom presents WIBRO access (Wireless Broadband, more info on Wikipedia over here) for all types of devices, be it a smartphone, a PDA or a PC, thanks to the UICC, Universal IC card (some kind of SIM Card). As you can see on the pictures, you can read the UICC in a specific card reader and it provides access to all the WIBRO goodies. There’s even a roaming possibility in WDCMA (in the countries that support that service of course).