On Sat, 23 Sep 2006 22:32 +0100 (BST), Colin Rosenstiel wrote:

And how will Oyster do network card (or any other railcard)
discounts.

I would expect that it won't. What we're most likely to see, I
reckon, is a German-style joint tariff in which TfL sets fares and
"national rail" type offers won't be valid.

Why? I get Network Card discounts on tickets from Cambridge that include
Underground travel, day Travelcards and tickets to Underground zones.

You only get the Railcard discounts on the NR part of the fare, not
the Tube part. (Though through fares are now calculated in a
complicated and obscure way, and I'm not sure they're even the sum of
NR and Tube parts any more.)