"tim....." wrote in message
...


Adding new bits to a mobile buggers up the standby time.
And as longer standby time is the holy grail that the
networks keep demanding the extra bits don't happen
until everyone is sure that there is a need.


Er (apart from space taken up) why would a separate but embedded rfid device
cause power problems? There doesn't seem to be much of a problem with the
standby time of an Oyster card... If the mobile is able to interrogate its
chip to check balance or history I would have thought consumption would be
trivial compared with most other important functions like ringing, calling,
texting etc...

Seriously though, what size is the actual device embedded in the card?
Perhaps a way of mounting it on say a watch strap, or bracelet or some such
might catch on...

Paul