In message .com, at
08:59:17 on Fri, 3 Aug 2007, Mizter T remarked:
Of course the system could be arranged so that travel expenditure
was debited from the users mobile bill or mobile PAYG balance, without
the need for any such link. The number of various different methods
for how any such scheme might work are many.

Mr Virgin seems pretty implacable that my phone has a £100 a month
credit limit (despite my having a good credit record with both him and
everyone else over the years). Wouldn't even buy me a SOR to London

I'd imagine that an RFID-enabled SIM might not work, as in many
mobiles the battery would present a barrier between the SIM and any
potential RFID reader in the 'outside world'.

Yes, I had considered that, which is a shame because it would be a
better solution.
--
Roland Perry