Originally Posted by
sharktums
Totally agree that in the past it wouldn't have worked, but using the tap system in London and NYC this summer it's pretty instantaneous when using my phone to tap. I would love to see Japan switch to this system, especially as they seem to be limiting the Suica/Pasmo cards now.
Using a credit card to tap in and out in the tube in London is noticeably slower than using a Suica in Japan. Chaos would ensue at a stations like Shinjuku, Shinagawa, etc. if people generally had to exit at London speeds in the morning rush hour.