Apparently Cingular is testing a new service that allows you to use your cell like a credit card. I guess it sounds like a neat idea but I do have some concerns about security in case you misplace (or decide to change) your device. Cingular will be testing this service for up to 6 months with Nokia and financial institutions like Citigroup and MasterCard Worldwide. Two technologies,"near-field communication" (NFC) and the MasterCard PayPass, will be built-in so you will just have to "swipe" your device to make payment . Marguerite Reardon from C/NET has a short article
here
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