notes an interesting new piece of tactile feedback technology unveiled in Japan. Officials of Miraisens, a high-tech firm based outside Tokyo, said the technology, which can be used to improve the gaming experience or allow someone to physically shape objects that exist only on a computer, will soon be available for purchase. "Touching is an important part of human communication, but until now virtual reality has lacked it," Chief Executive Natsuo Koda said. "This technology will give you a sense that you can touch objects in the 3-D world," said Koda, a former virtual reality researcher for Sony Corp. It works by fooling the brain, blending what the eye sees with different patterns of vibration created by a small fingertip device, said Norio Nakamura, the inventor of so-called 3D-Haptics Technology and chief technical officer at the firm. In one demonstration of a prototype head-mounted display, the company showed how the wearer can feel resistance by pushing virtual buttons.