Chameleon Card Changes Stripes

This is one of the more out there ideas. I would think it would be easier to use an electronic device like a phone or PDA than to have a master card you morph into the card you need. How do you convince merchants you are not pulling one over…

An upcoming product promises to lighten your wallet in a good way — by replacing all those credit, bank and customer-loyalty cards with a single, programmable card. [Wired News]

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