On Sat, 1 Dec 2012 12:52:21 +0000, Roland Perry
wrote:

In message , at 11:42:39 on Sat, 1 Dec 2012,
Mizter T remarked:
The OnePulse card was specifically designed so that the payWave and
Oyster elements of the card didn't conflict,

It might just mean that there's no interference when used with an
only-Oyster or only-Paywave reader. Richard says that there's "trouble"
if you have Oyster and Paywave adjacent on different cards.

Yes, I've seen that at the new gateline at Waterloo, and at St P.,
only two observations though, need more really.

[Mizter T]
so my understanding is that they are in at least one sense 'connected'.
(Curious why you think such a thing is almost impossible to believe?)

[Roland Perry]
Sounds like it could break every crypto rule in the book, for both
halves, if it was a data connection.

That's what I had in mind but Roland put it more succinctly - I meant
that it's hard to imagine Barclays being able to modify the Oyster
part of the card and especially the PayWave part.

But I suppose it's possible that the first one to feel itself being
energised could switch the other one off.

In the case of OnePulse, you'd want the Oyster part to have priority
somehow, but only in London. All (separate) cards seem to respond to
a reader -- by the time a card knows it can't be used (like my Málaga
one) it seems to be too late to prevent interference with the others.
I just can't see how all that is really possible.

[Me]
then it's like
having an Oyster and a PayWave in the same wallet, which already
causes trouble. My wallet, with Oyster, ITSO and a Spanish one (not
sure what standard that one is) is guaranteed to fail!

[Mizter T]
Well, what we can be sure of is that no-one at TfL could possibly have
considered this scenario...

[Roland Perry]
I'm sure they've thought of it, but the answer might be "sorry you can't
use them". iirc it was touch and go that the Onepulse project carried
on (ie that any of the cards were replaced when they expired).

It's a reasonable enough answer, but if the majority of the cards in a
wallet/purse are now going to wake up and say hello it might not be a
good enough answer in future. PayWave and ITSO will be the new
neighbours more and more.

Richard.