Touch-screens Lack That Keyboard Touch
One of the "wow" factors of the iPhone was its touch-screen, which offers graphical buttons to replace almost all the hard buttons that typically sit atop a cellphone and inevitably confuse users. Touch-screen buttons can be bigger, better labeled, and generally easier to see and navigate. They also make it easier to bounce around menus and the Web, as you just point with your finger instead of using buttons or wheels to move some mechanical pointing device.
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