Kevin Rose, the founder of Digg.com who also had accurate word of the Core 2 Duo Macbook and Macbook Pro, has confirmed the availability of Apple iPhone. The iPhone will be launched in January on all CDMA and GSM providers. Available in 4GB or 8GB capacities, the phone will feature a slide-out keypad, touch screen display, Flash memory, and a custom OS. The 4GB version will retail for US$249, while the 8GB will retail for US$449. Watch the video after the jump to get more details.