The biggest problem is that the touch screen is often the only way to interact with your phone or tablet. When that suddenly goes away, it can feel like you're locked out of your device.

If you bought a laptop in the last five years, you've probably had to decide between a model that had a touch screen and one that didn't. Some people love touch screens, others don't see the point.

The tyranny of touch screens may be coming to an end. Companies have spent nearly two decades cramming ever more functions ...