We have a couple of videos for your enjoyment below, videos to do with the iPhone no less, and they cover multitasking on the iPhone with the aid of Coverflow at the bottom of the icons and shows all tasks which currently run on the iPhone.
Design vision is only doing half the job and thus Apple would need to make it work on the iPhone, or Apple could pay Ocean Observations a nice wad of cash to make their idea reality.
Of course there is clutter and so to deal with that the designers came up with yet another bright idea a solution they call Springboard Expose. Both videos can be found below courtesy of pmptoday so hit them up and check them out.