What made the IBM ThinkPad 701 special was the butterfly keyboard designed by John Karidis solved the problem of making a portable computer with a full-size keyboard. It had a better action than modern laptops in terms typist feedback and was a compact full size keyboard. This was unheard of at the time. It was delicate the way it folded into place as one opened the lid on the laptop and robust enough to cope with travails of mobile working.
