The brilliantly named Wiley Wiggins also had the decency to inform us of the TonLeiter (ToneLadder). It has sensors in the rungs which allow you and others to play music by stepping up and down which makes for some very entertaining viewing. Check out the movies and pics page. My second favourite blog, Near Near Future, witnessed a performance by the creators yesterday at Dorkbot and have some photo's on their flickr stream.