Unfortunately this code regressed as a result of other changes. A
possible workaround for the time being would be to "email" the public
key from General Settings, but instead of going through with the
email, simply copy the public key to the pasteboard and paste it into
the authorized_keys file on the server. I had received so many
complaints about not being able to send public keys via email I had
figured no one used the transfer key option anymore and was actually
in preparation to take it out.
(For the record, iSSH collects no use analytics of any kind, so I have
to guess as to what's being used given the feedback I received.)
Dean