
I bought a SNCF ticket on t'internet, to be picked up at a French station.
Put my credit card into the automatc ticket machine for validation, it asked for my PIN, said it was OK, thought about it for a minute or two, then came up with an error, printed out a slip of paper that said go to a desk for help and reset itself.
At the desk they tried swiping my card and typing in the number. Each time it crashed their application. If a normal credit card for a paper ticket has these problems, what chance a 'smart object'?
OK, so maybe they hadn't tested for a Swiss credit card being used from England to book a combined SNCF/Eurostar ticket, but I can't be the only foreigner that likes to book in advance for a better deal.
Btw, TGV train tickets have to be date stamped in a machine just before entering the train - so they are made of thin card like an airline boarding pass. Preumably these USB tickets are just for local journeys, like the Oyster card?