Andy – I don’t seem to be able to sign in to comment on your blog anymore via openid…again probably a UE so I’ll leave my comment here and try again later.
I like your point about Postman and Roszak “that the machine influences curriculum, rather than curriculum influencing the machine.” However, what would be their argument about educational software? Meaning software that is built specifically to teach or reinforce a concept. I believe that Logo was initially built to teach programming, but has evolved to teaching math and other ideas. There seem to be plenty of softwares out there and the only purpose they serve is to teach something.