It's fascinating how phones have come full circle. One of my first cell phones had a full QWERTY keyboard with physical keys that was exposed when you slid the top face of the phone sideways. Many phones in that era had similar full keyboards.
The fact that the iPod touch, iPhone, iPads, and other surface devices didn't need physical keys was seen as more modern and desirable at the time. Now it looks like people are circling back around and wanting physical keys again.
History moves in a helix I guess.