Rupert Candy wrote:
DLR ticket machines aren't that unique - the Tramlink ones are of the
exact same design!

Indeed so, as are most of the ticket machines on the Paris Metro -
which have recently been adapted with smartcard readers for the Navigo
card. So it can be done!

The ticket machines in Grenoble are so similar to Tramlink, they think
they are in Croydon:
http://www.ajg41.plus.com/images/rai...tramlink02.jpg