If you spend some time in keyboard aficionado circles, you will find a lot of talk about them, especially in relation to (similarly infamous) Knight, Space Cade

If you spend some time in keyboard aficionado circles, you will find a lot of talk about them, especially in relation to (similarly infamous) Knight, Space Cadet, and other Lisp Machine keyboards. Thus "infamous". The fact that they required special IC per key only makes them even more "wild" :)