That sounds just like the bloke that told me that computers in homes would never catch on, or that the early (and £3500) cellular phones "never will be" viable outside of business use.
Absolutes like "never will be" have a way of turning round and biting you in the tush.
When I think of my first PC, barely capable of running AutoCAD in wire-frame, and then think about modern graphics workstations, voice recognition, touch screens on a portable device, never mind the power of even a modern budget cellphone compared to that £10,000 PC (and yes, it was £10k, almost to the penny), it makes me very sceptical about "never" in tech terms.
Tablets have come a hell of a long way in the last three, four or five years so what about the next three, four or five? Or 10? 20? Let alone "never".