The notion that the teacher will become superfluous is completely wrong. However, there is an opportunity for the role of teachers to change - for the better.
If one follows this argument then it's like suggesting that schools will become glorified Internet cafes where the teachers provide hostess services which is complete and utter nonsense. Since the days of Plato software and CBT the displacement or demise of the teacher has been predicted as imminent and yet good teachers are in more demand than ever.
I don't agree that suggesting a changing role for teachers leads to a conclusion of teachers as hostesses, in fact, teachers who adapt to new situations are those who
are in more demand than ever.
A Victorian classroom, with a didactic and authoritarian teacher, is very different from a classroom where students are working collaboratively, taking different roles as researcher, presenter, discussant etc. But there are still qualities that remain the same throughout teaching, for example,
to ensure that children have an equal opportunity to learn and that they attain certain standards.
and also creating a safe learning environment, motivating and enthusing students etc etc. But the way in which this is done can be different from lesson to lesson - and if there is a dramatic shift in learning context, then the role played by the teacher to attain those qualities will change.
Presumably there is a difference between how you enable equal access to resources/experts when you have 15 text books to share to the situation where every student has access to the internet, virtual resources, ebooks etc
It is not about the displacement or demise of teachers - but the changing role required to make the most of the opportunities that can be presented through good use of technologies. In fact, with access to huge amounts of information, opportunities to communicate with wide and distant audiences, the ability to be mobile etc, the role of the teacher will need to change in order to embody the qualities required.
The questions seems to have been posed in order to provoke discussion (tut tut Graham), but the question of in what ways can teachers best support mobile learners is an interesting one. Yes by embodying the qualities of current teachers - but how do the classroom relationships change when students have constant, easy access to experts outside of the classroom - what is the benefit of accessing an expert in the classroom over and above accessing experts remotely?