Hi Basil,
Psion still available at:
www.posltd.com
They are 're-conditioned' machines and when I phoned to enquire they told me they are built out of new parts. So I shelled out £100ish with some trepidation for one of these machines.
It appears to be what posltd say it is; it looks new, smells new works like new and two years later is still OK. The only clue that it's built out of bits is the case halves are different shades of grey and where it used to have a natty little psion badge on the top cover origally now has a bit of dymo tape with psion printed on it.
I just checked their website, they are still available.