For some time I have been seeking helpful advice about how to connect a Psion Series 7 to the latest MacBook. It seemed as though we had drawn a blank which is a pity because I still find uses for my Series 7 and have some data on it that I want to transfer and work on. I have now found a simple, easy and instant solution. I bought a Sony multi-card reader MRW62E (11.23 on Amazon), plugged it in (with the Psion Compact Flash card from the Series 7 inserted) and immediately I could read and copy to my MacBook all files that had been converted on the Psion (by choosing "More" then "Export as Text" and calling it, for example "stuff.txt").

This is all I ever wanted to be able to do and I should have thought of this before.