Being able to touch, click and press your way around an operating system with a variety of hardware configurations, while not alienating potential upgraders, is no mean feat. That said, Microsoft thinks it might have the solution. By introducing a new mode, a 20 pixel buffer will be designated to working with those edge swipes we've heard about. It'll also go towards preventing accidental hits around the, typically less sensitive, edges of older screens. It does mean that you'll be lo