Chicago drivers have a new way to pay for gasoline, with their fingertips. Some Shell gas stations in the Windy City are testing biometric systems that let consumers walk up to the pump, scan their fingertips on a device and fill up their vehicles. The systems, also installed at Shell convenience stores, are directly linked to customers’ bank or credit-card accounts. Customers start by initially scanning their fingerprints at a kiosk inside the gas station and then link payment information either at the store or online. The biometric devices were made by a San Francisco based company called Pay By Touch. The system eliminates the need to carry a wallet or checkbook in the store and provides customers with greater convenience, security and speed at checkout. More at Yahoo News.