It’s a PC stuffed into a full size keyboard. It also comes equipped with a touch screen glass display where the numpad should be. What would you use it for? Well, if you have a Ultra Wideband HDMI compatible HDTV, you could wireless connect this PC for some media centric action.
It sounds great on paper, but we have no idea what the exact specifications are or how well it will perform. Still, it is a great idea! Check out the AnandTech article for slides and more info.