Next Generation Mobile Phones: Combining Wallet and Train Pass in One Device

NTT Docomo's latest mobile phones, equipped with Sony's smart chip, are set to function as train passes and aim to replace cash, credit cards, and tickets. Tokyo commuters have been using Sewi car train passes with embedded chips for years, and soon, mobile users will make purchases and use them as bullet train tickets. Asia leads in smart chip technology.

In what ways can mobile Sewi car holders use their phones?

How does the smart chip technology in Asia compare to the rest of the world?