Sydney lets you use your credit card to tap on to trains and buses, which is very nice

Vancouver does this too, at least on the SkyTrain. Very convenient when you're a visitor.

as does Chicago. Credit card or just any tap to pay card on your phone works tapping in and out.

	▲	jjice 9 hours ago \| parent [-]
		Boston was the last major city I saw to actually add this in the US (every other major city metro I've seen has it). Boston got it last Spring or Summer if I recall. The MBTA is a nightmare, but at least I don't have to reload my Charlie Card anymore...