Slideshow: http://images.businessweek.com/ss/06/04/biometrics/source/1.htm
Let Your Fingers Do the Paying
What: Pay By Touch
Measures: Fingerprints (actually scans finger for 40 of 1000 data points)
Status: Available in grocery stores as well as a soon though an as-yet-undisclosed, major online e-tailer
Sample customers: Supervalu, Albertson's, Piggly Wiggly, IGA. Used by several retailers and has contracts to be in over 10,000 stores by year's end.
Pay By Touch just may be the most prominent biometric device in the U.S.
Overview: Shoppers enrolled in the program can speed through checkout lines, paying for items with a linked bank account or credit card simply by applying a fingerprint to a sensor. Pay By Touch says more than 2.5 million people have signed up. Now the company plans to expand into online retail, using sensors available on some laptops.