HP unveiled Tuesday, Oct. 13, 2009, a choice of 20- or 23-inch diagonal widescreen consumer HP TouchSmart PCs - the HP TouchSmart 300 and HP TouchSmart 600. Users can simply pinch, rotate, arc, flip, press or drag a finger across the touch-enabled screens of the PCs to access information, entertainment and social networks in a natural, intuitive way. (Photo: Business Wire)