h a l f b a k e r y
This would work fine, except in terms of success.
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Credit cards worldwide are now being
reissued as microprocessor smartcards
instead of magstripe cards. These new
cards can run programs and store
reasonable amounts of data.
what you need is a smartcard reader slot
in your PDA. Then, to check the
transaction history on your credit
stick the card in the reader and type your
PIN. The card will have downloaded the
entire recent transaction history (including
"card not present" transactions) the last
time it was used in an online transaction.
An obvious benefit is that you'll
know more quickly if someone is using
your card number and also restaurants
won't be able to double-swipe your card
wwithout you noticing.
I'm sure we'll see applications like this in
the next five years. Further on than that
will be cards with built-in thumbprint
readers which display data like the
transaction history on the surface of the
card when they recognise their owner's
||before long ultra thin displays might remove the need for the pda in this idea and make it more realistic
||Why not just have a PDA with a wireless internet connection that connects it up to your bank? That works for me now.