While we've seen credit cards becoming part of our gadgets, like the iPhone VISA case, there's another movement underfoot to revolutionize what a credit card or debit card looks like and how you use it. The Card 2.0 is a new-concept credit card that isn't just changing the way you keep your card secure, but allowing you to cut down on the cards in your wallet without closing an account.

Card 2.0 is a re-imagining of the current plastic credit and debit cards that fill our wallets. It allows users to link one card to multiple accounts or to hide the account number and deactivate the magnetic stripe until it needs to be used, preventing the use of a lost or stolen card.

The two versions of the card, Hidden and Multi-Account, solve these pressing issues, including the ability to re-write the magnetic stripe on the fly while remaining flexible and waterproof. Unlike many other solutions we have seen touted, the Card 2.0 solution works with all current magnetic card readers and acts just like a the plastic that cashiers are already used to accepting.

The Hidden Card 2.0 version allows users to keep the credit card number hidden until they are ready to use the card, activating it with a PIN. When the card is inactive, the front of the card keeps a portion of the number blank and the magnetic stripe is also blank.

The second version, Multi-Account, is designed for users who want to combine a credit and debit card or a personal and a company card on the same piece of plastic. Before handing over the card to make a purchase, simply choose the account you want to use and the correct number and stripe will become active.

According to Mashable, the founders of Dynamics, the company behind Card 2.0 is in talks with several banks that are already testing the cards and CEO Jeff Mullen tells Mashable that banks will be launching branded versions of Card 2.0, "soon." Mashable wonders if we'll see Bank of America hopping on board early on, and we have to wonder if USAA Bank could be another candidate given their quick uptake on new technology.

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