Microsoft is reportedly gong to demo a new vertical incarnation of its Surface multi-touch technology today at the CEO Summit being held at its Redmond campus. The new device, called Touchwall, is a prototype developed by Microsoft researchers and is designed to let users manipulate content displayed on the screen much like its current Surface tabletop computer. However, TouchWall makes use of lasers and infrared lights to detect when a user touches the panel. Combined with software called Plex, users can drag images around, scroll through documents and manipulate multimedia content. One of the potential uses would be for business presentations.