I like the idea but I would be too worried about security. What if someone clicks to the wrong account on it without your knowledge? The biggest thing for me would be having everything on the one card in case of theft. I am sure we have all shopped somewhere that has had their info compromised, would they be able to get all the card number?
looks like they have that stuff mostly covered.
the button to toggle cards is (according to the site) not that easy to accidentally push.
once the card goes a certain distance from your phone (you set the distance) such as a restaurant, the toggle gets turned off completely and can only swipe the card that was selected.
if its stolen, you will get a notification that the card has left the vicinity that you set, after a certain amount of time separated from your phone, which you set as well, the card disables itself so it cant be used.
and anything as far as the merchant machine being compromised, the card reader at the store only gets the info of the card that you choose to use. if their machine or records get hacked, its the same as using that one credit card, only that info will be stolen, not all of the cards.
i like it, and if they figure out a way to recharge it (not going to happen, bc there would be no resale of course) it would be pure gold.
if i had an extra $50 right now, i would preorder.