Here's an article I came across today (http://www.seasip.info/AmstradXT/greengage16386.html) while looking through back issues of Personal Computer World. If the Greengage was actually sold, it seems to have been a very well-kept secret; I've never heard of it before today.
(An aside: The last time I read that issue was in the school library when it was published, ie 1992. I still found occasional bits that I remembered from first time round, like the review of RocketShare (http://lowendmac.com/2014/radius-rocket-far-more-than-a-mac-accelerator/) for the Mac, or the line in Michael Hewitt's column that his fileserver's hard disk "got stuck on slow spin, or rinse cycle, or something equally vertiginous").
Interesting.
That awakens a vague 30 year old memory (from 8000 Plus?) of something similar - wasn't there a company that offered to convert your PCW into a dual OS - CPM/MS-DOS machine - might even have been an article on that?
This? (http://www.cpcwiki.eu/forum/nc100-nc200-pcw-pda600/swift-286-pcw/msg52092/#msg52092)
Thanks for the link John,
That was exactly what I was thinking of.
I wonder how practical it was in operation?
Cheers,
Peter