It still exists. We learned that the "Interim Dynabook" is really useful to certain classes of professionals, and we learned that the "Dynabook" is a lot more v

It still exists. We learned that the "Interim Dynabook" is really useful to certain classes of professionals, and we learned that the "Dynabook" is a lot more valuable when it fits in your pocket, even though that requires serious compromises in terms of user input quality. The reason you can't see it is two-fold; first, people who don't actively extend systems by habit care less about the underlying system or its hackability. A similar line of thinking believed television would provide a level of enlightment that never happened for all that educational shows still exist on public channels. Second, money got involved. Passive consumers are more profitable in aggregate and less risky.