peter at pmsommer.com
Tue Dec 2 13:41:12 GMT 2014
On 02/12/2014 12:29, Francis Davey wrote:
> Am I right in thinking that these are either account based, or that
> the cards/phone take care of ensuring that double-payment does not
> take place?
Yes. As far as I know NFC transactions go through a regular credit
card account, at least mine do.
There is another thing you might like to look at. The Seoul transport
system uses a Oyster-like card which can also be used for other
low-value transactions like coffee and snacks. But as far as I know
the value is loaded from a bank account.
When I was at the LSE I kept track of these things, usually doing at
least one full lecture a year on the topic, but I haven't really kept up.
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