Thanks for your information!
I found the spec and picture of MC400 on the Web. That's cool indeed!
60 hours of battery life with 80C86 CPU is amazing.
Psion is not well known in Japan, but I think it's one of the coolest mobile P
C manufacturers in the world.
Not PC-compatible, but Psion sold a thing called an
MC400 that had a
touchpad-type of pointing device. You moved your finger over it to select
icons and menus on the display, and then clicked by pressing down -- the
whole touchpad moved down slightly and operated a microswitch inside the
machine.
I have no idea if it was the first (I think the Gavilan would pre-date it
if it has a similar touchpad), but it was pre-powerbook I am almost
certain. The Psions were being sold off in the UK in the early 1990's, so
they must have come out a few years before that.
-tony