Photo: Sharp Corp. Robohon, Sharp's walking, talking, dancing robot that is also a phone, may not be a blockbuster in terms of sales, but could point to what mobile devices look like in the future.

It uses Sharp’s Robohon humanoid phone. In January, six drivers in their 60s and 70s gathered at the Yao Driving School here and took turns driving on public roads. Installed on the front ...