I bought a Psion 3 in 1992, and it came with a programming manual, and I was curious, so I typed in the code for a basic conversion function, yards to metres. It was the beginning of a joyfully creative period of writing computer code that was useful and entertaining. Over about a year I created a complex and sophisticated piece of entirely original software that became, for a while, the highest selling shareware program on the then new thing called the Internet. One of the reasons it got noticed is that I combined being an actor with being a programmer - anticipating the user's wishes and habits and making them laugh when they went wrong.

New technology overtook the Psion, even the Series 5, but I still use my Revo for the diary - nothing on the iPhone gets anywhere near it, even now. And my Conversion Calculator Pro is still used almost daily.

It was my obsession for a while, then it ended and I've never got round to updating the page. So here it is, preserved in all its nineties glory.

Just click on the Home Screen!