This would eliminate the pesky need to carry your wallet around with you everywhere you go.

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How many times have you fumbled around in your wallet or pockets, desperately trying to find your boarding pass before catching a flight?

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It can be carried around in a wallet.

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If you really must keep one credit card in your wallet, wrap a piece of red paper around it and write in big, bold letters EMERGENCY.

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"So the waitress brings our beers, and he reached around and he said, 'Oh I forgot my wallet, '" she said.

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What they needed to do was switch things around in her head so that the challenge became not taking the wallet but leaving it.

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It may appeal to your wallet, but if your arms are used to flinging around Ultrabooks for fun, this probably won't be the machine for you.

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While the market in the U.S. for mobile financial products like mobile payments is nascent, excitement around the potential possibilities is growing fast, rapidly fuelling the interests of players like Google Wallet, Isis, PayPal and many more.

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