[CES 2011] Ever wondered how the credit card will evolve from what it is today? Dynamics has the answer with their MultiAccount credit cards which will be able to merge multiple accounts onto a single card, letting you choose the type that you want to use whenever the cashier is ready to ring up your purchases. The selected acount will be indicated via a tiny blinking light located next to it, so watch carefully lest you make a mistake and charge it to a maxed out account. All the relevant details are stored on the magnetic stripe located at the back automatically, allowing you to swipe it like any other standard credit card. Already in use Stateside, they feature an integrated battery which can last up to four years of “normal use” – of course, that depends on what your definition of “normal” is.