The ultimate product aims to provide the first fast-on-the-draw handheld pocketsized solution to people's need for mobile organization. Data entry formats will enable it to replace clipboards used in many professional applications. They thought PDA's with pen based inputs would be the answer when the Poquets and Dynabooks died under the hard use of QWERTY keypads. Is the Jotter (penbased grafitti) function actually an excuse for not being able to write fast with QWERTY? The past waves in this industry have fallen under intellectual illusions which when practically applied, make data entry a chore instead of making it easy.
The problem with PDA QWERTY keyboard is that I still cannot write as fast as I can think. The objective one-finger keyboard is a lot faster that scrunched PDA QWERTY, because in common words, letters are next to the ones that they are commonly used with. Our ultimate electronic personal memory organizer contains the alpha-numeric keys, arranged for easy, one-finger use. The design principle of the JEFF keyboard is to bring the most frequently used letters closest to the center, and place the other letters closest to those they appear most often in standard words.
It is based on a statistical study of 2,020,000 words in New York Times English, prepared for cryptographic purposes by a U. S. government agency. It is felt that this particular layout will provide the most flexibility and ease of use in the smallest space possible. This alphanumeric layout was designed by two math PhDs, ergonomic cryptographers, both named Jeff, working at the University of California at Berkeley using computer workstations. This was chosen over the QWERTY-style keyboard due to the fact that it is intended to be used with one hand, not two as needed in typing and to accommodate the widest possible audience, even non-typists.