Nokia have made a device which bends and is flexible, they call it a kinetic device. Now before we get too far ahead of ourselves, the device is currently a prototype only so it may not ever be available for consumers. Nokia showed it off at their Nokia World event in London this week.
The idea is that you bend the device to go through the UI and control things like zooming, skipping songs and more. It's hard to describe what exactly happens it's why there is a video embedded.
As you can see it is very different from literally anything out there. With a phone like this, screens will be a lot more durable, the phone itself will be more durable and because of the flexible materials, it can also be water-resistant and dust proof. Hopefully we'll see something like this in the very near future.