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Psion is company that developed the Psion Organiser, and other Personal Digital Assistants:

All these PDAs have a small keyboard.

The company Symbian was spun off in June 1998.
Psion has since then largely abandoned the enduser-market, and concentrated on equipment for mobile data-aquisitation, heavy-duty and industrial envionments.

Psion also developed games and utilities for the ZX Spectrum during the 1980s. The software was often released by Melbourne House.


In high energy physics the Psion is a meson, now normally called J/Psi to reflect its independent discovery and naming by two groups of scientists in 1974.
Also, someone who works with psi, in addition to any unknown, mysterious, or supernatural energy force.