If you want to have some insight into the mind of Kay and his contemporaries, this is a great article. He talks about what could have happened ( and still might ) if the computer had not become such a huge consumer item.
Kay has a great way of talking about the computer potential and phones and handhelds to make you aware of the fact that we are still not there yet. Kay has first hand knowledge of Papert, Minsky and Englebart. And he relates the work of all of these great minds to great minds in education, Neil Postman and Montessori. Link to Kay’s early paper on the history of computers.