Guess today is the day for electronic wallet-type gizmos. Don't expect to see this over here, but Dainippon Printing has created the Ubiqitous Networks Passport Advanced-Light, which stores your electronic cash on a SIM card (the same ones used in cellphones), and can be refilled by connecting to your PC over a USB cable. To pay for stuff, you simply swipe the Ubinetpass through a card reader and its LED screen will tell you how much you have money you have left. What's even better is that the LED screen can read product information stored on RFID tags, if you want to find out more about what you're thinking about buying. A version with Bluetooth and a biometric fingerprint scanner (for that extra little bit of security) are planned.