Think the multi-touch display of your iPhone is cool? Then you are going to be amazed by the Ring Wall - The world's largest, multi-touch, multi screen and multi-user wall.

The gigantic 425sq.ft (think 6,000 computer screens) wall, located in the village of Nurburg, Germany at the world-famous Nurburgring Race Track, was built by Sensory Minds, a German company that focuses on developing next-generation, natural user interfaces.

The wall comprises of two pieces - a huge LED display on the top and a multi-touch information wall at the bottom. The crystal clear images can be attributed to 15 high definition projectors, which are supported by 30 directional speakers that deliver the highest-quality sound. The multi-touch display is based on the latest laser technology, which allows for 80 users to simultaneously browse for global news and events. Pretty awesome!

sources:infosthetics.com, crenk.com