HP recently showed off its “wall of touch” concept to The Wall Street Journal.  HP labels it a “large digital sign” that allows users to interact with it.  Interestingly HP gives the user two options for said interaction: you can touch it as you normally would with, say, a Microsoft Surface table, or you can simply point to specific locations on the wall.  With the aid of integrated cameras and a magnetic strip the wall can detect when a user approaches and intentially interacts with it with hand gestures.  For now HP is selling this technology to companies who plan on using it in large public spaces.  In fact, Continental Airlines has one of the first walls installed in their Houston airport.  HP does leave the door open and hints that it may turn into a “mainstream product” if there’s enough interest and demand for it.  It would cost anywhere from “a couple thousand dollars” to $100,000, depending upon the built-in technologies (HD video cameras, etc.).  Be sure to check out a demo of HP’s “wall of touch” in the video above.

[Via Wall Street Journal; Engadget]