TOH has a lot of potential. The most obvious implementation is a HW keyboard. Other ideas: audio expansion module, FM radio, wireless charging, solar charging, extra display options... even advanced things like a voltmeter or an oscilloscope.

Err, wait, all of the above has been or is being implemented by Dirk or Kimmo.

And how has Jolla realized the great TOH potential? A few ringtones and background pictures!