Looks like Hitachi has made some serious headway on the biometric payment system we first heard about way back in the halcyon days of 2007. According to the Mainichi Daily News, the company is currently testing its Finger Vein Authentication System internally, with the device serving as a method of payment for vending machines and the like. Once it's proven that employees are able to get their Koala's March and Hi-Chew without incident, the plan is to up the ante, with high precision ID systems that combine finger vein and finger print authentication systems for military use.Filed under: Science