I know, but that's just using it as a debit card, not an Oyster card. Using it as a proper travel pass is far more interesting, because that will be an instanc

I know, but that's just using it as a debit card, not an Oyster card. Using it as a proper travel pass is far more interesting, because that will be an instance of using a watch as a custom access card, which will lead to the popularisation of the idea for everything from workplace security to hotels to boarding passes. It would be a gateway app in terms of normal people seeing the utility of a smart watch.