So take a touch screen and add folding to it but apply the tech to a keyboard with little 1mm bumps for each letter and numbers that also has a speaker in it.
For use to connect up to a PC/MAC/other and phones a USB-c port or Bluetooth.
As for the speaker this is to make sounds when pressing the keys and for the bumps is so you know what you are pressing.
It would be a split keyboard and then on each side of that would be open to personalized hotkeys.
My reasoning for such a thing is we do not have any touch screen keyboards on the market cleaning such a thing would also be much more easier and with the fact the fold 4 is very high water proof would also have this added protection for a keyboard where careless people who do spill on there keyboard wont have to worry about damage as it will be sealed by the touch screen.
It would also come in two versions a big and small the bigger one for home use and a smaller one if you want it for home use or any device such as your phone on the move.
