Laurence Payne wrote:

They're there. They work on period tickets. But the train companies
don't seem to want to wire them up to the pre-pay system.

That's because they are slow on the uptake of a purely zonal fare system as
per the tube. AFAIK it's not due to come into effect until 2006 or 2007.
Unfortunately NR are very much in the past with their archaic point to
point system for rail only journeys within the Travelcard area.

--
Phil Richards
London, UK
Home Page: http://www.philrichards1.pwp.blueyonder.co.uk