This little comment thread made me smile! Psion 3 (no letter) was my first PDA when I was about 12 and then I upgraded to a Psion 3c. After graduating from BASIC on my father's Acorn A3000 and A5000 my first apps on my own computing device were OPL shareware. It's where I got my love of what would become open source for me. I also did work experience at the Psion Factory when I was 15 because I grew up nearby (yes, they were actually manufactured in Greenford in West London, in a warehouse behind the B&Q on the A40).