One of the unique features of the Apple Iphone is that it dispenses with the physical keyboard and relies on a touch screen for input.
The touch screen interface, that was depicted in the Tom Cruise film, Minority Report, is just over the horizon. This would mean that the digital desktop has literally arrived, with fewer devices (less pointing and clicking with a mouse and pecking on keyboards) to direct computing actions, and more reflective of the metaphor of the physical desk top. Below is a video of a multi-point touch screen interface.
Jeff Han 2007 Video