Autodesk has been showing multi-touch touchscreens as a something-for-the-future and Microsoft hopes to ship horizontal ones some day, but CNN has already been using one for their American election coverage. Emphasis on the word "one" -- each costs over $100,000.
Paul Farhi of the Washington Post describes how it works in CNN Hits The Wall for the Election: Interactive Gizmo Maps Results in Leaps and Bounds.
A tap on a map of Florida brought up displays of the vote totals in key counties. King shrunk one graphic by making a pinching motion around its borders; he made another expand by drawing his fingers apart, as if he were manipulating the images on an iPhone.
(Note to headline writers: "hit the wall" means to come to the end; this is a story of beginnings.)